Chapter 1 Test Study Guide 2. WHAT HAVE I LEARNED? Doing the problems in this section will help you to evaluate which types of problems you feel comfortable with and which ones you need more help with. Solve each problem as completely as you can. The table at the end of this closure section provides answers to these problems. It also tells you where you can find additional help and practice on problems like them. CL 1-95. DOT PATTERN Copy the dot pattern below onto your own paper. a. Draw the 4th, 5th, and 6th figures. b. How is the pattern changing? CL 1-96. Lena’s mother asked her to count the number of pennies in the penny jar. Her mother said, “I made seven stacks of six pennies each, and there were four leftover pennies.” When Lena counted she made nine stacks of five pennies each and had two left. . Write a numerical expression to represent Lena’s way of counting. a. Write a numerical expression to represent her mother’s way. b. Lena thinks her mother must have been working with fewer pennies than she was. Is Lena correct? Show how you know. c. Use a < , > , or = symbol to show how the two expressions compare. CL 1-97. Amanda’s little brother, Timmy, is learning about even and odd numbers in math, and he says, “Six is both even and odd because 2 is even and goes into 6 and 3 is odd and goes into 6.” Explain to Timmy why he is mistaken and clarify for him which numbers are even and which are odd and how he can tell. CL 1-98. Make a diagram for every possible rectangular array of 30 pennies. Use dots like these ( ) to represent the pennies. . Label each of your diagrams with its dimensions. a. List all of the factors of 30. b. Give the prime factorization of 30. CL 1-99. Find the perimeter and area of each figure below. . a. b. c. Sketch at least one way to rearrange the tiles in part (a) so that the shape has a larger perimeter. CL 1-100. Write the missing number that makes each of the following number sentences true. . 12 · ? = 180 a. = 12 b. 7 · ? = 98 c. = 11 CL 1-101. For each of the problems above, do the following: Draw a bar or number line that represents 0 to 10. Color or shade in a portion of the bar that represents your level of understanding and comfort with completing that problem on your own. If any of your bars are less than a 5, choose one of those problems and do one of the following tasks: Write two questions that you would like to ask about that problem. Brainstorm two things that you DO know about that type of problem. If all of your bars are at 5 or above, choose one problem and do one of these tasks: Write two questions you might ask or hints you might give to a student who was stuck on the problem. Make a new problem that is similar and more challenging than that problem and solve it. 3. WHAT TOOLS CAN I USE? You have several tools and references available to help support your learning: your teacher, your study team, your math book, and your Toolkit, to name only a few. At the end of each chapter, you will have an opportunity to review your Toolkit for completeness. You will also revise or update it to reflect your current understanding of big ideas. The main elements of your Toolkit should be your Learning Log, Math Notes, and the vocabulary used in this chapter. Math words that are new appear in bold in the text. Refer to the lists provided below and follow your teacher’s instructions to revise your Toolkit, which will help make it useful for you as you complete this chapter and as you work in future chapters. Mathematical Vocabulary The following is a list of vocabulary found in this chapter. Some of the words have been seen in a previous chapter. Make sure that you are familiar with the terms below and know what they mean. Click on the word for a "pop-up" definition. For more information, refer to the glossary or index. You might also add these words to your Toolkit so that you can reference them in the future. area composite number even number expression factor histogram multiple odd number perimeter place value prime number product rectangular array remainder scatter plot Answers and Support for Closure Problems What Have I Learned? Note: MN = Math Note, LL = Learning Log Problem Solution Need Help? More Practice Lesson 1.1.3 Problems 1-15, 1-18, 1Team posters in 19, and 1-91 problem 1-16 CL 1-95. a. Figure 4 will have 14 dots, Figure 5 will have 17 dots, Figure 6 will have 20 dots. See diagrams above. b. The left side grows one taller each time and the two sides each grow by one, so the “C” is growing by 3 dots each time. CL 1-96. CL 1-97. a. 9·5+2 b. 7 · 6 + 4 c. Lena’s expression simplifies to 47, her mother’s simplifies to 46. Lena’s expression is more. d. 9·5+2>7·6+4 Lessons 1.2.1 and1.2.2 MN: 1.2.2 Even numbers are divisible by 2; Lesson 1.2.3 odd numbers are not. A number MN 1.2.3 cannot be both odd and even because it is either divisible by 2 or it is not divisible by 2. Being able to divide the number by other odd digits is not relevant. Since 6 is divisible by 2, it is even. Lessons 1.2.3 and1.2.4 CL 1-98. Problems 1-46, 1-57, 158, 1-68, 1-69, and 1-70 Problems 1-64 and 1-66 Problems 1-68, 1-69, 176, 1-78, 1-79, and 1-92 MN 1.2.3 LL 1.2.4 a. Diagrams have dimensions of 5 by 6, 3 by 10, 2 by 15, and 1 by 30. b. Factors of 30: 1, 2, 3, 5, 6, 10, 15, and 30 c. 2·3·5 CL 1-99. a. Perimeter: 14 units Area: 8 square units b. Perimeter: 18 units Area: 20 square units c. Perimeter: 46 cm Area: 120 cm Lesson 1.1.2 MN 1.1.2 Problems 1-5, 1-9, 111, 1-21, and 1-86 d. Possible arrangement: CL1-100. 1. 2. 3. 4. 15 8 14 99 Lessons 1.2.3 and1.2.4 Problems 1-49 and 1-85