Thirty-two cards that start with base-ten blocks drawn to scale — a flat really is ten rods — and finish on a number line where the point has to be read before the number can be rounded. Two of the cards land exactly halfway, and the key says so rather than pretending one end is nearer.
What’s included
- 32 numbered task cards, four to a page, ready to cut apart
- Base-ten block figures and rounding number lines on 24 of them
- Four levels of eight: blocks, digit value, rounding to ten, rounding to a hundred
- A two-page recording sheet plus a one-page Scoot sheet
- A Teacher Answer Key giving the reasoning as well as the answer
- Color and black & white versions
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Classroom use ideas
- Play SCOOT with the whole set at the end of a place value unit
- Pair the block cards with real base-ten manipulatives
- Give the two rounding levels to a small group that is still guessing at the halfway case
- Use eight cards as a warm-up for a week