We will work on the following skills:

1.OA.1 Use addition and subtraction within 20 to solve word problems

1.OA.2 Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20

1.OA.3 Apply properties of operations as strategies to add and subtract.

1.OA.4 Understand subtraction as an unknown-addend problem.

1.OA.5 Relate counting to addition and subtraction

1.OA.6 Add and subtract within 20 Demonstrating fluency for addition and subtraction within 10

1.OA.7 Understand the meaning of the equal sign

1.OA.8 Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.

On-line Activities:

1. Fact Families

2. Number Balance

3. Math Square

4. Add Like Mad

6. Save the Whale - Bonds of 10

7. Crickweb - Main Menu

8. Calculation Balance

9. Sum Sense- Create a balanced equation

10.Math Magician - Addition

11. Sum Cloud Challenge

12. Number Pairs- Find pairs to make 20 or 100

13. How Many Under the Shell?

14. Minus Mission

15. Story Structure - Change Unknown

16. Number Balance