Mobile Math Teachers Circle The Return of the iclicker


 Sylvia Maxwell
 2 years ago
 Views:
Transcription
1 Mobile Math Teachers Circle The Return of the iclicker June 20, Dr. Spock asked his class to solve a percent problem, Julia set up the proportion: 4/5 = x/100. She then crossmultiplied to solve for x. Which mathematical reason best explains why crossmultiplication works? (Select ONE answer.) A. In a proportion, the product of the means equals the product of the extremes. B. You are actually multiplying both sides of the equation by 5 and by 100 and then simplifying. C. Crossmultiplication is the rule for solving proportions. You multiply the numerator of one times the denominator of the other, and set them equal. D. You are actually multiplying 4/5 by the identity for multiplication, 20/20, to get x = 80. E. 100 divided by 5 equals 20 and 4 times 20 is 80. F. You do it because Dr. Spock told you so. 2. Al is 5 feet tall and has a shadow that is 18 inches long. At the same time, a tree has a shadow that is 15 feet long. Al sets up and solves the proportion as follows: Al claims the solution is, x = 54 in. 5 ft 18 in = 15 ft x in. Which of the following statements is correct? (Select only ONE.) A. The units work out correctly, that indicates that Al s solution is correct. B. Al s solution is wrong because he did not convert all units to inches. C. Al set up the ratios correctly but he did not properly solve for x. D. Shadow problems are tricky and cannot be solved with ratios. E. Al s answer is incorrect. A more appropriate ratio would have been 5 ft 18 in 1.5 ft = = x ft 15 ft 15 ft.
2 3. Dr. Seuss asked his class to find 16% of 25. The Grinch decided to calculate 25% of 16 instead. To Dr. Seuss surprise he got 4 as the answer. What can we say about the Grinch s method? (Select ONE answer.) A. The Grinch s method is not correct and gave the wrong answer to this problem. B. The Grinch s method never gives the correct answer. C. The Grinch was just lucky. The method works because 25% is just a quarter, a special case. The method would not work in general. D. The Grinch s method gives the correct answer and could be used for any numbers. E. The Grinch stole Christmas. 4. Students in Mr. Bieber s class were discussing the average speed of two moving objects. The graph below shows the position of a train and the Batmobile, over ten seconds. The tic marks on the horizontal axis are located at 1 second intervals, and the tic marks on the vertical axis are at 20 meter intervals. distance in meters Train 20 Batmobile time in seconds Which of the following statements is correct? (Select only ONE.) A. The average speeds of the train and the Batmobile are the same over this interval. B. The average speed of the train is greater than the average speed of the Batmobile because the graph for the train is always above that for the Batmobile. C. There isn t enough information to determine the average speed of either vehicle. D. You can determine the average speed of the train because it is a straight line, but cannot determine the average speed of the Batmobile from this graph. E. The Batmobile is always faster.
3 5. After visiting a local machine shop on a field trip Ms. Potter s class is given the following problem: The machine shop just replaced an older machine with a modern one. For every 3 parts that the old machine produced, the new machine will produce 7 parts. If the old machine produced 27 parts in one hour, how many will the new machine produce? Students calculated the solution in different ways. Of the following examples of student work, which is least likely to represent correct thinking? (Select ONE answer.) 7 27/3 = 63 (3 7) + (3 7) + (3 7) = = /3 = = Mr. Dumbledore introduced the notion of two quantities being inversely proportional to his class. In order to gage whether his kids understood the concept he asks several of them to give some examples where inverse proportions appear. Which of the following scenarios contain examples of quantities that are inversely proportional? Select one of the following: Inverse proportions appear Inverse proportions do not appear I m not sure (a) Hermione notes that if a charity wants to distribute $1, 000 of aid in equalsized amounts. It must decide whether to distribute small amounts to many people, or larger amounts to fewer people. (b) Ron just came from physics class. He reports that a radioactive substance loses half its mass each 10 years due to radioactive decay. How is the mass of the substance measured as a function of time? (c) Harry says: Today in economics class we discussed socalled zerosumgames. Suppose two of us start with $100 each, and we are going to play a zerosumgames, so that, as much as one of us wins, the other loses. (d) Dudley suggests the following: Inverse proportions appear if we want to compare the bases and heights of all rectangles whose area is exactly 100 square feet.
4 7. Professor Voldemort is trying to figure out whether his students really understand rational and irrational numbers. He gave them a few statements about such numbers and asked his students to decide whether the statements were true or false. Which of the statements is true? For each item below, select True False I m not sure (a) If you add a rational number to an irrational number, the answer is always irrational. (b) Between any two different rational numbers, there is at least one irrational numbers. (b) Between any two different rational numbers, there are infinitely many rational numbers. (c) A decimal number with a repeating pattern is rational only if the pattern starts immediately to the right of the decimal point (e.g., is rational but is irrational). (d) The only way of getting an irrational number is by taking the square root of a number that is not a perfect square. (e) If you divide an irrational number by a rational number the result can be a rational number. 8. Ms. Babbling wants her students to explain the meaning of 1/8 2/5. For each of the following below, decide whether it is an mathematically valid interpretation of 1/8 2/5. (Select VALID, NOT VALID, or I M NOT SURE for each.) (a) How many 2/5 s are in 1/8? (b) How much is 1/8 of 2/5? (c) What number is 1/8 twofifths of? (d) How many 2/5 s can you subtract from 1/8 before reaching 0?
5 9. Susan s asked to work the problem She explains her solution as follows: First I totally ignore the decimal point and just do the multiplication, which gives me 2, 328. Then I use estimation to place the decimal point. I know that 0.24 is about a quarter and 97 is close to 100. Now a quarter of 100 is 25, so my answer should be Which of the following is most appropriate to say about Susan s approach? answer.) (Select ONE It happens to work in this case, but will not work for most problems. It only works if one of the numbers is a whole number. It works for any numbers, but some examples are harder to estimate. It works equally well for all problems. I m not sure 10. Mr. Binns asks his colleagues to suggest word problems that he could use on his quiz on division with decimals. Which of the following suggestion(s) could he use as a word problem for ? (Select YES, NO or I M NOT SURE for each.) (a) You have 30 cents, but need 70 cents to buy some candy. amount do you already have? What fraction of the total (b) My pet lizard eats 0.3 ounces of bugs per day. If I purchase 0.7 oz of bugs, how many days will the bugs last? (c) One inchworm races 0.3 yards. Another inchworm only makes it 0.7 the distance the first inchworm raced. How far did the second inchworm go? (d) A snail can crawl 0.7 meters per hour. If the snail needs to move 0.3 meters to find food, how long will it need to crawl to get to the food?
6 11. Professor Quirrell gave his students the problem Later the students were asked to share their solutions. Draco Malfoy said, Because there s one decimal place in 0.7, I need to move the decimal point in both numbers over one place and then do the division. Then he wrote the following on the board: = 2.7 Ron Weasley commented, Hey, you cheated. You changed the problem to That does not explain that 2.7 is the answer to ? Of the following, which provides the best basis for explaining why this procedure works? (Select ONE answer.) (a) It works because you can t divide by a number with a decimal point, so the divisor must be converted to a whole number. (b) It works because converting the decimals to fractions and dividing produces the same quotient. (c) It works because the quotient stays the same as long as you move the decimal point the same number of places in both the divisor and the dividend. (d) It works because multiplying the dividend and the divisor by the same number is really multiplying by 1, so the quotient will remain the same. (e) It works because moving the decimal points maintains a constant difference between the divisor and dividend, which leaves the quotient unchanged.
Table of Contents. Introduction...v. About the CDROM...vi. Standards Correlations... vii. Ratios and Proportional Relationships...
Table of Contents Introduction...v About the CDROM...vi Standards Correlations... vii Ratios and Proportional Relationships... 1 The Number System... 10 Expressions and Equations... 23 Geometry... 27
More informationGrade 5 Mathematics MidYear Assessment REVIEW
Grade 5 Mathematics MidYear Assessment REVIEW The learning targets (Texas Essential Knowledge and Skill statements) are listed prior to sample items. The sample items are not an exhaustive list and only
More informationTrimester 2 5 th Grade Name: Answer Key
Trimester 2 th Grade Name: Answer Key..NBT.7 Fiona hiked along a trail in Glacier National Park that is 7.2 miles long. It took her hours to hike. What was her average speed per hour? 7.2 / =.3 (miles
More information15 Square Roots and Real Numbers. Holt Algebra 1
15 Square Roots and Real Numbers Warm Up Lesson Presentation Lesson Quiz Bell Quiz 15 Evaluate 2 pts 1. 5 2 2 pts 2. 6 2 2 pts 3. 7 2 10 pts possible 2 pts 4. 8 2 2 pts 5. 9 2 Questions on 04/010/011
More informationOverview. Teacher s Manual and reproductions of student worksheets to support the following lesson objective:
Overview Lesson Plan #1 Title: Ace it! Lesson Nine Attached Supporting Documents for Plan #1: Teacher s Manual and reproductions of student worksheets to support the following lesson objective: Find products
More informationNorth Carolina Standard Course of Study  Mathematics
A Correlation of To the North Carolina Standard Course of Study  Mathematics Grade 4 A Correlation of, Grade 4 Units Unit 1  Arrays, Factors, and Multiplicative Comparison Unit 2  Generating and Representing
More informationUses of Fractions. Fractions
Uses of The numbers,,,, and are all fractions. A fraction is written with two whole numbers that are separated by a fraction bar. The top number is called the numerator. The bottom number is called the
More information1/ 19 2/17 3/23 4/23 5/18 Total/100. Please do not write in the spaces above.
1/ 19 2/17 3/23 4/23 5/18 Total/100 Please do not write in the spaces above. Directions: You have 50 minutes in which to complete this exam. Please make sure that you read through this entire exam before
More informationMcRuffy Press Fourth Grade Color Math Test 7
McRuffy Press Fourth Grade Color Math Test 7 Materials: Test pages (Resource pack, 3 sheets) Test Directions Page :. Problem solving: Solve the problems. 2. Fractions to decimals: Change the fractions
More informationLesson 25: Solving Problems in Two Ways Rates and Algebra
: Solving Problems in Two Ways Rates and Algebra Student Outcomes Students investigate a problem that can be solved by reasoning quantitatively and by creating equations in one variable. They compare the
More informationSPIRE MATHS Stimulating, Practical, Interesting, Relevant, Enjoyable Maths For All
Ratio and proportion TYPE: Main OBJECTIVE(S): Understand the relationship between ratio and proportion; use ratio notation, reduce a ratio to its simplest form and divide a quantity into two parts in a
More informationModule 1. Ratios and Proportional Relationships Lessons 11 14
Math 7 Module Lessons.notebook September, 05 Module Ratios and Proportional Relationships Lessons Lesson # September, 05 You need: pencil, calculator and binder. Do Now: Find your group and complete do
More informationMath Released Item Grade 5. Whole Number and Fraction Part 0542M02399
Math Released Item 2017 Grade 5 Whole Number and Fraction Part 0542M02399 Anchor Set A1 A10 With Annotations Prompt 0542M02399  Rubric Part A Score Description Student response includes the following
More informationCorrelation to the Common Core State Standards
Correlation to the Common Core State Standards Go Math! 2011 Grade 4 Common Core is a trademark of the National Governors Association Center for Best Practices and the Council of Chief State School Officers.
More informationVersion : 27 June General Certificate of Secondary Education June Foundation Unit 1. Final. Mark Scheme
Version : 27 June 202 General Certificate of Secondary Education June 202 Mathematics Foundation Unit 4360F Final Mark Scheme Mark schemes are prepared by the Principal Examiner and considered, together
More informationJumpstarters for Math
Jumpstarters for Math Short Daily Warmups for the Classroom By CINDY BARDEN COPYRIGHT 2005 Mark Twain Media, Inc. ISBN 10digit: 158037297X 13digit: 9781580372978 Printing No. CD404023 Mark Twain
More informationHistograms and Frequency Polygons are statistical graphs used to illustrate frequency distributions.
Number of Families II. Statistical Graphs section 3.2 Histograms and Frequency Polygons are statistical graphs used to illustrate frequency distributions. Example: Construct a histogram for the frequency
More informationSEVENTH GRADE. Revised June Billings Public Schools Correlation and Pacing Guide Math  McDougal Littell Middle School Math 2004
SEVENTH GRADE June 2010 Billings Public Schools Correlation and Guide Math  McDougal Littell Middle School Math 2004 (Chapter Order: 1, 6, 2, 4, 5, 13, 3, 7, 8, 9, 10, 11, 12 Chapter 1 Number Sense, Patterns,
More informationMITOCW big_picture_integrals_512kbmp4
MITOCW big_picture_integrals_512kbmp4 PROFESSOR: Hi. Well, if you're ready, this will be the other big side of calculus. We still have two functions, as before. Let me call them the height and the slope:
More informationKey Maths Facts to Memorise Question and Answer
Key Maths Facts to Memorise Question and Answer Ways of using this booklet: 1) Write the questions on cards with the answers on the back and test yourself. 2) Work with a friend to take turns reading a
More informationGRADE 6 WINTER REVIEW MATH PACKET
Student Name: Date: Math Teacher: Period: GRADE 6 WINTER REVIEW MATH PACKET 20142015 Find the greatest common factor of each set of numbers. 1. 27, 36, 72 a. 216 b. 8 c. 9 d. 18 2. The table shows the
More information65 Solving Proportions
Solve each proportion. 24 12.6 34 esolutions Manual  Powered by Cognero Page 1 2.4 29 55 esolutions Manual  Powered by Cognero Page 2 TELEVISION Aspect ratio is the ratio of width to height of a television
More informationDIFFERENTIATE SOMETHING AT THE VERY BEGINNING THE COURSE I'LL ADD YOU QUESTIONS USING THEM. BUT PARTICULAR QUESTIONS AS YOU'LL SEE
1 MATH 16A LECTURE. OCTOBER 28, 2008. PROFESSOR: SO LET ME START WITH SOMETHING I'M SURE YOU ALL WANT TO HEAR ABOUT WHICH IS THE MIDTERM. THE NEXT MIDTERM. IT'S COMING UP, NOT THIS WEEK BUT THE NEXT WEEK.
More informationProofs That Are Not Valid. Identify errors in proofs. Area = 65. Area = 64. Since I used the same tiles: 64 = 65
1.5 Proofs That Are Not Valid YOU WILL NEED grid paper ruler scissors EXPLORE Consider the following statement: There are tthree errorss in this sentence. Is the statement valid? GOAL Identify errors in
More informationx) Graph the function
1) If and, find and 2) If, find 3) Use the definition of logarithms to rewrite this equation in exponential form: 4) Expand 5) a) Evaluate and show how you got the answer without a calculator. b) Evaluate
More informationpercents Common Core Standard 7.RP3 Use proportional relationships to solve multistep ratio and percent problems.
Intro All right, welcome to class everybody I need you guys to come in, take your seat Take out everything you need Put it on top of your desk I have something real special planned for you Now make sure
More informationWarm Up Lesson Presentation Lesson Quiz. Holt Algebra 1 1
118 Radical Radial Expressions Warm Up Lesson Presentation Lesson Quiz 1 Warm Up Simplify each expression. 1. 2. 3. 4. Objectives Multiply and divide radical expressions. Rationalize denominators. You
More informationPlease fax your students rhythms from p.7 to us AT LEAST THREE DAYS BEFORE the video conference. Our fax number is
Class Materials 1 Dear Educator, Thank you for choosing the. Inside this packet, you will find all of the materials your class will need for your upcoming Math and Music video conference. There are lessons
More informationDistribution of Data and the Empirical Rule
302360_File_B.qxd 7/7/03 7:18 AM Page 1 Distribution of Data and the Empirical Rule 1 Distribution of Data and the Empirical Rule StemandLeaf Diagrams Frequency Distributions and Histograms Normal Distributions
More informationMATHEMATICAL THINKING
MATHEMATICAL THINKING Numbers and their Algebra James Tanton (with additional tidbits by Kit Norris) COMMENT: These notes are based on content from the THINKING MATHEMATICS! Volume 1: Arithmetic = Gateway
More informationTHANK YOU FOR YOUR PURCHASE!
THANK YOU FOR YOUR PURCHASE! The resources included in this purchase were designed and created by me. I hope that you find this resource helpful in your classroom. Please feel free to contact me with any
More informationUNIT 6 Ratios, Rates, Proportions and Measurement Conversions CCM6+7+ Name Teacher Estimated Test Date
Page 1 UNIT 6 RATIOS RATES PROPORTIONS Meas. CONVERSIONS CCM6+7+ UNIT 6 Ratios, Rates, Proportions and Measurement Conversions CCM6+7+ Name Teacher Estimated Test Date Main Topics Page Number(s) Unit 7
More informationMAT Practice (solutions) 1. Find an algebraic formula for a linear function that passes through the points ( 3, 7) and (6, 1).
MAT 110  Practice (solutions) 1. Find an algebraic formula for a linear function that passes through the points ( 3, 7) and (6, 1). Answer: y = 2 3 + 5 2. Let f(x) = 8x 120 (a) What is the y intercept
More informationBPS 7th Grade PreAlgebra Revised summer 2014 Year at a Glance Unit Standards Practices Days
BPS 7th Grade PreAlgebra Revised summer 2014 Year at a Glance Unit Standards Practices Days 1 All Operations with Integers 7.NS.1, 7.NS.2, 7.NS.3 1,4,6,8 7 2 All Operations with Rational Numbers 7.NS.1c,
More informationUnit 7, Lesson 1: Exponent Review
Unit 7, Lesson 1: Exponent Review 1. Write each expression using an exponent: a. b. c. d. The number of coins Jada will have on the eighth day, if Jada starts with one coin and the number of coins doubles
More informationBite Size Brownies. Designed by: Jonathan Thompson George Mason University, COMPLETE Math
Bite Size Brownies Designed by: Jonathan Thompson George Mason University, COMPLETE Math The Task Mr. Brown E. Pan recently opened a new business making brownies called The Brown E. Pan. On his first day
More informationamount base = percent 30% of the class 90% of the points 65% of the televisions
Free PreAlgebra Lesson 41! page 1 Lesson 41 Solving Percent Equations A percent is really a ratio, usually of part to whole. In percent problems, the numerator of the ratio (the part) is called the, and
More information11 Variables and Expressions
11 Variables and Expressions Warm Up Lesson Presentation Lesson Quiz Warm Up Add or subtract. 1. 6 + 104 110 2. 12(9) 108 3. 23 8 15 4. Multiply or divide. 5. 324 18 18 6. 6 7. 13.5(10) 135 8. 18.2 2
More informationTalking REAL Maths. A resource to engage children in discussion based on common errors and misconceptions in mathematics.
Talking REAL Maths A resource to engage children in discussion based on common errors and misconceptions in mathematics. ALGEBRA Discussion mat Suggested year group/ks APP link Simple Sequence Lower KS2
More informationAskDrCallahan Calculus 1 Teacher s Guide
AskDrCallahan Calculus 1 Teacher s Guide 3rd Edition rev 080108 Dale Callahan, Ph.D., P.E. Lea Callahan, MSEE, P.E. Copyright 2008, AskDrCallahan, LLC v3r080108 www.askdrcallahan.com 2 Welcome to AskDrCallahan
More informationCourse 1 Unit 4 Practice
Course 1 Unit 4 Practice Lesson 171 1. Use ratios to compare the shapes shown. a. black shapes to all shapes 4. Reason quantitatively. The number of ducks to geese in Miller s Pond last year was 2:3.
More informationHow can you determine the amount of cardboard used to make a cereal box? List at least two different methods.
Activity Start Thinking! For use before Activity How can you determine the amount of cardboard used to make a cereal box? List at least two different methods. Activity Warm Up For use before Activity Evaluate
More informationDelta College Middle School Math Competition Practice Test A 2018
Delta College Middle School Math Competition Practice Test A 208 ) In the Noveo music group there are 4 times as many flutes as there are bassoons. The number of clarinets is 8 more than triple the number
More informationAlgebra I Module 2 Lessons 1 19
Eureka Math 2015 2016 Algebra I Module 2 Lessons 1 19 Eureka Math, Published by the nonprofit Great Minds. Copyright 2015 Great Minds. No part of this work may be reproduced, distributed, modified, sold,
More information3/31/2014. BW: Four Minute Gridding Activity. Use a pencil! Use box # s on your grid paper.
Monday, /1 You Need: On your desk to be checked during bellwork: Extra Credit Assignment if you did it Math Notebook Table of Contents Assignment Title # 9 Bellwork /17/20 40 4.2 Rates 41 4.2 Practice
More informationMathsWhizz Investigations PaperBack Book
PaperBack Book are new features of our Teachers Resource to help you get the most from our awardwinning software and offer new and imaginative ways to explore mathematical problemsolving with realworld
More informationLecture 5: Tuning Systems
Lecture 5: Tuning Systems In Lecture 3, we learned about perfect intervals like the octave (frequency times 2), perfect fifth (times 3/2), perfect fourth (times 4/3) and perfect third (times 4/5). When
More informationEOC FINAL REVIEW Name Due Date
1. The line has endpoints L(8, 2) and N(4, 2) and midpoint M. What is the equation of the line perpendicular to and passing through M? A. B. Y= C. Y= D. Y= 3x + 6 2. A rectangle has vertices at (5,3),
More informationLesson 10. Here are the first two worked out.
Lesson 10 This page is on word problems. They will be using multiplication, division, addition, and subtraction. They will need to take multiple steps to find the answer to the question. They could use
More informationUnit 7, Lesson 1: Exponent Review
Unit 7, Lesson 1: Exponent Review Let s review exponents. 1.1: Which One Doesn t Belong: Twos Which expression does not belong? Be prepared to share your reasoning. 8 1.2: Return of the Genie m.openup.org/1/8712
More informationWhat is Statistics? 13.1 What is Statistics? Statistics
13.1 What is Statistics? What is Statistics? The collection of all outcomes, responses, measurements, or counts that are of interest. A portion or subset of the population. Statistics Is the science of
More informationCheck back at the NCTM site for additional notes and tasks next week.
Check back at the NCTM site for additional notes and tasks next week. PROOF ENOUGH FOR YOU? General Interest Session NCTM Annual Meeting and Exposition April 19, 2013 Ralph Pantozzi Kent Place School,
More informationUS_Math 4 1. Operations and Algebraic Thinking 4.OA 2. Number and Operations in Base Ten 4.NBT 3. Number and Operations  Fractions 4.
US_Math 4 1. Operations and Algebraic Thinking 4.OA 1.1 Multiplication of Whole Numbers 4.OA 1.2 Division of Whole Numbers 4.OA 1.3 Factors and Multiples 4.OA 2. Number and Operations in Base Ten 4.NBT
More informationUnits Standards Practices Days
BPS 7 th Grade Regular Math Revised Summer 2014 Year at a Glance Units Standards Practices Days 1. Rational # s Operations: Add & Subtract 2. Rational # s Operations: Multiply & Divide 3. Simplifying Expressions
More informationCreating Color Combos
THE 2016 ROSENTHAL PRIZE for Innovation in Math Teaching Creating Color Combos Visual Modeling of Equivalent Ratios Traci Jackson Lesson Plan Grades 56 Table of Contents Creating Color Combos: Visual
More information(1) + 1(0.1) + 7(0.001)
Name: Quarterly 1 Study Guide The first quarterly test covers information from Modules 1, 2, and 3. If you complete this study guide and turn it in on Tuesday, you will receive 5 bonus points on your Quarterly
More informationSPEED DRILL WARMUP ACTIVITY
SPEED DRILL WARMUP ACTIVITY Name the operation representative of each of the following: percent left reduction total more half less twice off lower each double Write the equivalents: 20% as a decimal
More informationMath: Fractions and Decimals 105
Math: Fractions and Decimals 105 Many students face fractions with trepidation; they re too hard, I don t understand. If this is you, there is no better tool to bring yourself back up to speed than a tape
More informationThe Lazy Man Explains the Irrational. E. L. Lady
The Lazy Man Explains the Irrational E. L. Lady I ve been thinking about those numbers that you can t write as fractions, Mr. Tinker said. Irrational numbers, they re called, the Lazy Man answered. Well,
More informationAlgebra in Our World from the workshop Law and Algebra: SVU (Special Visual Unit) by Heidi SchulerJones
Algebra in Our World from the workshop Law and Algebra: SVU (Special Visual Unit) by Heidi SchulerJones hschuler@ellijay.com. Every spring break Patty would take a group of college students to Juarez,
More informationSection 2.1 How Do We Measure Speed?
Section.1 How Do We Measure Speed? 1. (a) Given to the right is the graph of the position of a runner as a function of time. Use the graph to complete each of the following. d (feet) 40 30 0 10 Time Interval
More information2016 Excellence in Mathematics Contest Team Project Level I (Precalculus and above) School Name: Group Members:
016 Excellence in Mathematics Contest Team Project Level I (Precalculus and above) School Name: Group Members: Reference Sheet Formulas and Facts You may need to use some of the following formulas and
More information3.1 Decimal Place Value
3.1. Decimal Place Value www.ck12.org 3.1 Decimal Place Value Introduction The Ice Cream Stand Julie and her friend Jose are working at an ice cream stand for the summer. They are excited because in addition
More informationPitch correction on the human voice
University of Arkansas, Fayetteville ScholarWorks@UARK Computer Science and Computer Engineering Undergraduate Honors Theses Computer Science and Computer Engineering 52008 Pitch correction on the human
More informationMITOCW max_min_second_der_512kbmp4
MITOCW max_min_second_der_512kbmp4 PROFESSOR: Hi. Well, I hope you're ready for second derivatives. We don't go higher than that in many problems, but the second derivative is an important the derivative
More informationGCSE MARKING SCHEME AUTUMN 2017 GCSE MATHEMATICS NUMERACY UNIT 1  INTERMEDIATE TIER 3310U301. WJEC CBAC Ltd.
GCSE MARKING SCHEME AUTUMN 2017 GCSE MATHEMATICS NUMERACY UNIT 1  INTERMEDIATE TIER 3310U301 INTRODUCTION This marking scheme was used by WJEC for the 2017 examination. It was finalised after detailed
More informationThe unbelievable musical magic of the number 12
The unbelievable musical magic of the number 12 This is an extraordinary tale. It s worth some good exploratory time. The students will encounter many things they already half know, and they will be enchanted
More informationAnalyzing Numerical Data: Using Ratios I.B Student Activity Sheet 4: Ratios in the Media
For a rectangular shape such as a display screen, the longer side is called the width (W) and the shorter side is the height (H). The aspect ratio is W:H or W/H. 1. What is the approximate aspect ratio
More informationTeeJay Publishers. Curriculum for Excellence. Course Planner  Level 1
TeeJay Publishers Curriculum for Excellence Course Planner Level 1 To help schools develop their courses, TeeJay Publishers has produced a Course Planner for CfE Level 1. This Planner from TeeJay provides
More informationDisplay Dilemma. Display Dilemma. 1 of 12. Copyright 2008, Exemplars, Inc. All rights reserved.
I visited friends in New York City during the summer. They took me to this HUGE WalMart store. There was a display of cookie boxes that I could not believe! The display was in a pyramid shape with at
More informationMITOCW ocw f07lec02_300k
MITOCW ocw1801f07lec02_300k The following content is provided under a Creative Commons license. Your support will help MIT OpenCourseWare continue to offer high quality educational resources for free.
More information8.3. Start Thinking! Warm Up. Find the area of the triangle Activity. Activity. 4 m. 14 in. 7 m. 9 in. 12 yd. 11 yd. 1 mm. 5.
Activity Start Thinking! For use before Activity You know how to find the area of squares, rectangles, triangles, trapezoids, and parallelograms. Describe three different methods you could use to estimate
More informationSandwich. Reuben BLT. Egg salad. Roast beef
3.2 Writing Expressions represents an unknown quantity? How can you write an expression that 1 ACTIVITY: Ordering Lunch Work with a partner. You use a $20 bill to buy lunch at a café. You order a sandwich
More information2.2. Multiplying and Dividing Powers. INVESTIGATE the Math
. Multipling and Dividing Powers GOAL Develop and appl exponent principles to multipl and divide powers. INVESTIGATE the Math Amir thought there was a wa to simplif 1 6 1 9 1 without using a calculator.?
More informationMATH& 146 Lesson 11. Section 1.6 Categorical Data
MATH& 146 Lesson 11 Section 1.6 Categorical Data 1 Frequency The first step to organizing categorical data is to count the number of data values there are in each category of interest. We can organize
More informationProfessor Weissman s Algebra Classroom
Combine Like Terms Unit #12 2007 Prof Weissman s Software Tel: 13475287837 mathprof@hotmail.com Professor Weissman s Algebra Classroom Martin Weissman, Jonathan S. Weissman, Tamara Farber, & Keith Monse
More informationVersion : 1.0: klm. General Certificate of Secondary Education November Higher Unit 1. Final. Mark Scheme
Version : 1.0: 11.10 klm General Certificate of Secondary Education November 2010 Mathematics Higher Unit 1 43601H Final Mark Scheme Mark schemes are prepared by the Principal Examiner and considered,
More informationWIRE AND CABLE FIRE TESTS
TEST CSA C22.2 No 255613 Section 9.4 (FV2/VW1) (Small Scale Vertical) # OF VALUES REPORTED FOOTAGE REQUIRED 3 3 pieces: 24 each 5 7 days PERFORMANCE TIME CSAFT1 (Small Scale Vertical) 3 5 pieces: 24
More informationLearning fun with.
Learning fun with #1 #4 Milton Hershey was born in 1857. How many years ago was he born? Milton Hershey opened his first candy shop in 1876. It closed six years later. What year did his candy shop close?
More informationHuman Number Line. Introduction to Negative Numbers
Human Number Line Introduction to Negative Numbers 1 WARM UP Plot each number on a number line. Then, insert a. or, symbol to make each inequality statement true. 0 1 2 3 4 5 6 7 8 9 10 1. 3 4 1 1 2 2.
More informationAnswer questions 135 on your Scantron. Questions 130 will be scored for the Power Bowl event. In the
Answer questions 135 on your Scantron. Questions 130 will be scored for the Power Bowl event. In the event of a tie, questions 3135 will be used as the tiebreaker. 1. Subtract. a. 3 b. c. d. e. Not
More informationTHE OPERATION OF A CATHODE RAY TUBE
THE OPERATION OF A CATHODE RAY TUBE OBJECT: To acquaint the student with the operation of a cathode ray tube, and to study the effect of varying potential differences on accelerated electrons. THEORY:
More informationabc Mark Scheme Statistics 3311 General Certificate of Secondary Education Higher Tier 2007 examination  June series
abc General Certificate of Secondary Education Statistics 3311 Higher Tier Mark Scheme 2007 examination  June series Mark schemes are prepared by the Principal Examiner and considered, together with the
More informationRatios, Rates & Proportions Chapter Questions
Ratios, Rates & Proportions Chapter Questions 1. How are ratios simplified? 2. How are equivalent ratios written? 3. How are unit rates determined? 4. How can equivalent rates help to solve problems? 5.
More informationLesson 4 Scientific Notation Answer Key Holt
Lesson 4 Answer Key Holt Free PDF ebook Download: Lesson 4 Answer Key Holt Download or Read Online ebook lesson 4 scientific notation answer key holt in PDF Format From The Best User Guide Database Holt
More informationFINAL REVIEW m rounded to the nearest centimeter is _. Choose the correct answer, and write its number in the parentheses.
FINAL REVIEW Choose the correct answer, and write its number in the parentheses. 1. What is the value of the digit 4 in 135.847? (1) 4 tenths (3) 4 hundredths 4 tens (4) 4 hundreds 2. What is the value
More informationHomework Week 1 Grade 5. Name
Homework Week 1 Grade 5 Name Week 1 Day 1 5 yards = feet 1) Draw an array to represent 3 2. 2) Point C is the center of the circle. What is the diameter of the circle? 20 in. C 1) 2) 3) 3) When you find
More informationUnit 4 Proportional Reasoning: Ratio, Rate, and Proportion
Unit 4 Proportional Reasoning: Ratio, Rate, and Proportion Lesson Outline BIG PICTURE Students will: solve problems involving proportional reasoning. Grade 9 Applied Math Learning Goals Investigate ratio
More informationTHE OPERATION OF A CATHODE RAY TUBE
THE OPERATION OF A CATHODE RAY TUBE OBJECT: To acquaint the student with the operation of a cathode ray tube, and to study the effect of varying potential differences on accelerated electrons. THEORY:
More informationMath 81 Graphing. Cartesian Coordinate System Plotting Ordered Pairs (x, y) (x is horizontal, y is vertical) center is (0,0) Quadrants:
Math 81 Graphing Cartesian Coordinate System Plotting Ordered Pairs (x, y) (x is horizontal, y is vertical) center is (0,0) Ex 1. Plot and indicate which quadrant they re in. A (0,2) B (3, 5) C (2, 4)
More informationTaskbased Activity Cover Sheet
Taskbased Activity Cover Sheet Task Title: Carpenter Using Construction Design Software Learner Name: Date Started: Date Completed: Successful Completion: Yes No Goal Path: Employment Apprenticeship Secondary
More informationWelcome Accelerated Algebra 2!
Welcome Accelerated Algebra 2! TearOut: Pg. 445452 (Class notes) Pg. 461 (homework) U6H2: Pg. 390 #2124 Pg. 448 #67, 911 Pg. 461 #68 Updates: U6Q1 will be February 15 th (Thursday) U6T will be March
More informationN12/5/MATSD/SP2/ENG/TZ0/XX. mathematical STUDIES. Wednesday 7 November 2012 (morning) 1 hour 30 minutes. instructions to candidates
88127402 mathematical STUDIES STANDARD level Paper 2 Wednesday 7 November 2012 (morning) 1 hour 30 minutes instructions to candidates Do not open this examination paper until instructed to do so. A graphic
More informationSummer School: 5 th Grade Math Common Core Activities. Name:
Summer School: 5 th Grade Math Common Core Activities Name: 2 DIGIT SUBTRACTION 3 DIGIT SUBTRACTION 2 DIGIT ADDITION 3 DIGIT ADDITION 4 DIGIT ADDITION PLACE VALUE 5,7887,34271,9755,863450,55532,53412,36423,95424,8895,7885,36071,475850,555932,53488,342283,954172,364183,924
More informationIntroduction to Probability Exercises
Introduction to Probability Exercises Look back to exercise 1 on page 368. In that one, you found that the probability of rolling a 6 on a twelve sided die was 1 12 (or, about 8%). Let s make sure that
More informationPage Iix / Lab Notebooks, Lab Reports, Graphs, Parts Per Thousand Information on Lab Notebooks, Lab Reports and Graphs
Page Iix / Lab Notebooks, Lab Reports, Graphs, Parts Per Thousand Information on Lab Notebooks, Lab Reports and Graphs Lab Notebook: Each student is required to purchase a composition notebook (similar
More informationMARK SCHEME for the November 2004 question paper 9702 PHYSICS
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS GCE Advanced Level MARK SCHEME for the November 2004 question paper 9702 PHYSICS 9702/05 Paper 5 (Practical Test), maximum raw mark 30 This mark scheme
More informationTo calculate the estimated number of fish killed by shrimp trawlers every year in the Gulf of Mexico I will 9,400,000 by.
Blue  Divide by Whole Numbers and Powers of 10 Metric Conversions 1. The thickness of a book, including the covers, is 2.1 cm. The front and back cover are each 0.5 cm thick. The book has 230 pages, numbered
More informationYear Group 6. Maths. Comprehension. Teacher s Guide
LR MATHS SET 4 GUIDE ORANGE AW_Layout 1 05/09/2013 10:19 Page 1 Year Group 6 LSP 0164UK Ages 10 + Maths Comprehension CARDS Teacher s Guide Includes Table of Contents, Answer Key, Record Tracking Sheet
More informationCHAPTER 2. Black and White Television Systems
CAPTER 2 Black and White Television Systems 2.1 ideo signal The purpose of a black and white television system is to broadcast black and white images. It is the most simple television system. A black and
More information