Spiral practice fights forgetting. Each session pulls one fact (drill), one word problem (application), and one conceptual question (understanding) from across past topics. Run this as a 5-7 minute warm-up. Refresh for a new session; print the sheet for take-home.
How to use: Print, hand out at the start of math class, set a 7-minute timer. When time's up, review answers as a class. The mix of types (fact + word + concept) gives you formative data on where students are. Aim to run spiral 3-4 times a week.