Practice
1. Which CGI word problem type is most closely associated with the counting up to strategy?
2. For what sorts of numbers is "counting up to" an efficient strategy?
3. Write a word problem for introducing "counting up to" as a strategy.
4. Rewrite the missing number addition problem as a subtraction problem: 8 + ? = 11
5. Describe how to use "counting up to" to solve 7 - 5
6. Why do we want children to learn to use "counting up to" to solve subtraction problems?
7. What would be a good problem type to compare counting back and counting up to?