1. Big Idea Mathematical Processes: Doing mathematics involves a variety of processes including problem solving, reasoning, communicating, connecting and representing. 4-2 In a two-digit number, what do the first and second digits tell you?

2. Write a two-digit number. _______ Draw a picture showing the tens and ones in your number. If you draw a picture of me, 1 hundred 2 tens and 5 ones, what number am I? Draw a picture to solve. Give an example, using words or pictures, why we group ones into tens. 4-2 In a two-digit number, what do the first and second digits tell you? Use words or pictures to show the decade number thirty in two different arrangements.

3. Big Idea Mathematical Processes: Doing mathematics involves a variety of processes including problem solving, reasoning, communicating, connecting and representing. 4-3 How are the numbers through 99 written as words?

4. What is the value of the number word? Show it in three different ways. Make a pattern using number words and have a partner find the missing number word. Example: one-hundred forty, one-hundred fifty, ___________, one-hundred seventy How many three digit numbers can you make using the digits 5, 7, 9, and 4? Use each digit once in each number. What is the same about the number words for 75, 175, and 1, 750? What is different? 4-3 Seventy-five

5. Big Idea Mathematical Processes: Doing mathematics involves a variety of processes including problem solving, reasoning, communicating, connecting and representing. 4-4 & 4-5 How can you use the symbols >, <, and = to compare two-digit numbers?

6. Count the number of desks and chairs in your classroom. Write a sentence using symbols to compare the numbers. Create your own comparison word problem using the numbers 162 and 126 to share. 4-4 & 4-5 How can you use the symbols >, <, = to compare two-digit numbers? What is the greatest two-digit number you can make and what is the greatest three-digit number you can make using these numbers: 5, 3, 7? Put these numbers in order from least to greatest. 165, 301, 215 ____ < ____ < ____ On the back, draw place value blocks to show the value of each number and use symbols to compare.

7. Identify the missing number, and explain how you know it is the correct answer. Choose a 3- digit number, and write a riddle using the words before, after, and between to describe the number. The answer to your riddle should be your number Use the words before, after, and between to describe 143. Think of an event in your life. Use the words before, after, and between to describe when the event took place. 4-6 How can you find the number that is one before or one after another number, or the number between two other numbers? 40 43 46 52 55 ?

8. Using the digits 6, 4, 3, and 1, make as many numbers as possible each digit only once in each number. Then order your numbers from greatest to least. Choose three 3-digit numbers, and order them from least to greatest. Explain the procedure for ordering these numbers. The gray house is not taller than the blue house. The blue house is shorter than the tan house. Which house is taller, the gray house or the tan house? Explain how you got your answer. The carrot cake is larger than the coconut cake. The coconut cake is not smaller than the lemon cake. Which cake is larger, the lemon cake or the carrot cake? Explain how you got your answer. How is the skill of comparing numbers used to order numbers? 4-7

9. Scott is coloring boxes in a pattern. He colors 7, 14, 21, and 28. What is the pattern? What will be the next number? Use a hundred chart. Circle in red the boxes in an “add 5” pattern starting with 10. Then circle in green the boxes in an “add 10” pattern starting with 10. Which numbers did you circle twice? Why are some numbers in an “add 5” pattern repeated in an “add 10” pattern? Ty is coloring boxes in an “add 4” pattern. He colors 1, 5, 9, 12, and 17. He has made a mistake. What mistake has he made? How do you know you are correct? Jose is coloring on a hundred chart in an “add 3” pattern. He colors 32, 35, 38, 41, 45, 47 and 50. He has made a mistake. What mistake has she made? How can a number chart be used to show visual and numerical patterns? 4-8