The Life Starter
Sign up
Grade 3 · unit review

Review: Interpret Scaled Data and Shape Categories

Read scaled picture graphs, fraction-marked line plots, quadrilateral categories, and area partitions.

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. Key: one symbol means 3 votes. A row has 7 symbols. How many votes are shown?
Need a hint?
  • Write the key next to the row before multiplying.
  • Symbols and recorded items are different units when the key exceeds one.
2. Lengths in inches are ['1/4', '1/4', '1/2', '1/2', '1/2']. How many measurements equal 1/2?
Need a hint?
  • Make the fractional intervals equally spaced.
  • Frequency marks count observations rather than adding their measured lengths.
3. Must every quadrilateral be a square?
Need a hint?
  • Check each category’s required attributes.
  • A shape may belong to both a broad category and one or more narrower categories.
4. A whole has 16 equal tiles, split into equal 4-tile shares. What fraction is one share?
Need a hint?
  • Count how many equal shares cover the whole.
  • The denominator is the share count, not the number of tiles in one share.

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

A picture graph has a key of 5 votes per symbol and rows of 4 and 7 symbols. State totals and difference.

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 rows show 20 and 35 votes; their difference is 15 votes. The difference of three symbols must also be multiplied by the key of five.

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