Operations and Algebraic Thinking OA.C.6 OA.C.6 OA.A.2. Solve word Add and subtract Add and subtract OA.A.1. Use addition within 20, demonstrating within 20, demonstrating and subtraction within 20 problems that call for fluency for addition and fluency for addition and to solve word problems addition of three whole subtraction within 10. Use subtraction within 10. Use involving situations of numbers whose sum is strategies such as counting strategies such as counting adding to, taking from, less than or equal to 20, on; making ten; on; making ten; decomposing putting together, taking e.g., by using objects, decomposing a number a number leading to a ten; apart, and comparing, drawings, and equations leading to a ten; using the using the relationship with unknowns in all with a symbol for the relationship between between addition and positions, e.g., by using unknown number to addition and subtraction; subtraction; and creating objects, drawings, and and creating equivalent but equivalent but easier or represent the problem. equations with a symbol easier or known sums. known sums. for the unknown number to represent the problem. Students 20 20 19 19 Assignment Date 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25.
Operations and Algebraic Thinking Students OA.A.1. Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. 19 OA.A.2. Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. 19 OA.C.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten; decomposing a number leading to a ten; using the relationship between addition and subtraction; and creating equivalent but easier or known sums. 20 OA.C.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten; decomposing a number leading to a ten; using the relationship between addition and subtraction; and creating equivalent but easier or known sums. 20 Assignment Date 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25.
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