The Life Starter
Sign up
Grade 1 · unit review

Review: Measure Length and Organize Small Data

Use common starts, equal units, and category counts.

Download reviews and answer keys

Bring the unit skills together

Use these 4 new cases to check your reasoning. Choices are temporary and are not saved to an account, sent to staff or recorded as school grades. Download your current review choices before leaving or reloading.

Unit review questions
1. A spans 7 equal tiles, B spans 12, and C spans 9. Which is the middle length?
Need a hint?
  • Compare counts only when the unit size is the same.
  • The middle length is not necessarily the object listed second.
2. A strip is covered exactly by 10 equal tiles with no gaps or overlaps. What is its length in tile-lengths?
Need a hint?
  • Count the intervals occupied by tiles.
  • Boundary marks are not the same as length units.
3. One long tile equals two short tiles. A strip spans 7 long tiles. How many short tiles span it?
Need a hint?
  • Write the unit name next to every count.
  • More smaller units do not mean the object became longer.
4. Votes are apples 9, pears 3, and oranges 2. How many votes were recorded altogether?
Need a hint?
  • Keep category labels beside their counts.
  • A total uses all categories; a difference uses the two compared categories.

The download contains your current choices and any checked feedback. Keep the separate transfer-task work in your own document; downloading its instructions does not mark it complete.

Use the skills in a new task

Measure a drawn strip with six equal tiles, then report survey counts: walk 5, bike 3, bus 4.

Work on paper or in your own document. Explain the choices you made.

  • Draw or label the numbers or shape features the task gives you.
  • Say why each calculation or shape choice follows the ideas in this unit.
  • Check that your answer fits the story or drawing in the task.
Compare with a model response

The strip measures six tile-lengths when tiles meet end to end. The supplied survey has twelve responses; walk has two more than bike.

A different response can also meet the criteria. Compare the evidence and reasoning, rather than copying the wording.