BrightPath
Addition Within 20: Find and Fix the Strategy
Name:
Date:
Today I am practising: checking addition reasoning and correcting errors
1
A child says 8 + 5 = 12 because 8 needs 2 to make 10. Find the forgotten amount and fix it.
2
A number line for 7 + 6 jumps from 7 to 12, then says 12. What should the last jump show?
3
A student solves 9 + 9 = 17. Use a double to check and repair the answer.
4
Someone writes 10 + 6 = 15. Draw a ten-frame to decide whether it is correct.
5
A child counts 11, 12, 13 for 10 + 3 and writes 13. Is the strategy correct? Explain.
6
Write one believable wrong answer for 6 + 8, then show an adult how to repair it.
Grown-up note: Ask your learner to explain one answer in their own words.