Coach: look at the exit check results and the paper practice. Go back over every item a student missed: read it together, have the student explain their thinking, then show the correct thinking. Use the reteach routine below for anyone who missed two or more. Students who got everything right take the stretch task.

🔄 Reteach it (missed two or more)

Use a place-value chart with columns. Build both numbers with base-ten blocks, combine or take away one column at a time starting with the ones, and trade 10 ones for a ten when needed.

Practice problems with no regrouping first, then one regroup.

123 + 245 (no regrouping).
Answer: 368.
136 + 127 (regroup ones).
Answer: 263.
352 − 128 (borrow in ones).
Answer: 224.

🚀 Stretch it (got everything right)

Find two three-digit numbers whose sum is exactly 1,000.
Answer: Examples: 600 + 400, 357 + 643.
Fill in the missing digits: 4_6 + 2_9 = 715.
Answer: The two missing digits must add to 10, such as 456 + 259 or 436 + 279.