1. Big Idea Numbers, measures and objects can be compared and related to other numbers, measures and objects in different ways. 2-1 Essential Understanding/Question How are the number relationships of 0-more-than, 1 more-than, and 2-more-than the basis for adding with 0, 1, and 2?

2. Draw, build, or write to show how to add 0, 1, or 2 to 7, 37, or 467. (Your choice) Explain what happens when you skip count by 2’s beginning with the number 3 or number 4. (Your choice) Write a story problem adding 0, 1, or 2 to 4, 24, or 304. (Your choice) Using the class calendar, what day will it be 1 day and 2 days from today. How do I add with 0, 1, and 2? 2-1

3. Big Idea Some strategies for basic facts use equivalence to transform calculations into simpler ones. 2-2 Essential Understanding/Question What are different ways to learn and remember doubles facts?

4. Explain a good way to learn and remember double facts. Use these symbols to make three doubles facts. = 3 (Or choose your own number 1- 5) Write an addition story for a doubles problem. Then solve. Draw pictures of any real life objects that show doubles. What are different ways to learn and remember doubles facts? 2-2 + =

5. Big Idea Some strategies for basic facts use equivalence to transform calculations into simpler ones. 2-3 Essential Understanding/Question How can double facts be used to learn near doubles facts?

6. Solve the number riddle. Then write a number riddle of your own. A number plus 5 equals 9. What is the number? _____ + _____ = _____ The number is ______ What doubles fact will help you add 5+6? How do you know which number to double? Explain how a doubles fact can help you learn the near doubles fact. Write a doubles fact and draw a picture to show it. How can double facts be used to learn near doubles facts? 2-3

7. Big Idea There are many ways to show addition, subtraction, multiplication and division, and each operation is related. 2-4 Essential Understanding/Question What happens to the sum of two numbers when the order of the numbers being added is changed?

8. Solve the problem. Make a problem of your own. + 7 = 10 7 + = 10 = ____ Choose two numbers that are not double facts. Create a fact family. Explain the sub does not change when numbers are added in any order. Draw an addition picture. Write the facts for this picture showing the addends in a different order. What happens to the sum of two numbers when the order of the numbers being added is changed? 2-4

9. Big Idea There are many ways to show addition, subtraction, multiplication and division, and each operation is related. 2-5 Essential Understanding/Question When you add three numbers, how do you decide which to add first?

10. Add across and down. Write the missing numbers. Make your own number puzzle. List the strategies you could use to add three numbers. Explain one of the strategies you could use to add three numbers. When you add three numbers, how do you decide which to add first? 2-5 93214 6 18 12

11. Big Idea Some strategies for basic facts use equivalence to transform calculations into simpler ones. 2-6 Essential Understanding/Question How can you make 10 when adding 9?

12. Draw a picture that shows how you make a 10 when you add 9 to a number. Solve 9+5 = ______. Explain how you solved this problem. Write a number story about adding 9 to a number between 2 and 9. How can you make 10 when adding 9? 2-6 Add 9 to 7, 27, or 257. (Your choice.)

13. Big Idea Some strategies for basic facts use equivalence to transform calculations into simpler ones. 2-7 Essential Understanding/Question How can you make a 10 when adding 8.

14. Draw a picture that shows how you make a 10 when you add 8 to a number. Solve 8+7 = ______. Explain how you solved this problem. Write a number story about adding 8 to a number between 2 and 9. Add 8 to 5, 65, or 425. (Your choice.) How can you make a 10 when adding 8. 2-7

15. Big Idea Doing mathematics includes problem solving, thinking, communicating, connecting, and showing. 2-8 Essential Understanding/Question How can drawing a picture and writing a number sentence help you solve a math story problem?

16. Explain how a table helps you solve a math story problem. Fill in the table. Create your own math story problem and solve. Write and solve your story problem in this frame. insert How can drawing a picture and writing a number sentence help you solve a math story problem? 2-8 Lori Joanne Noreen Stickers Collected