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Grade 4 · unit review

Review: Balance and aiming models

Explain simple support, direction and feedback using safe paper models.

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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. Locate support in a static model: A base spans 2 to 8; the line reaches 5. Which fits?
Need a hint?
  • Use the support boundaries; real movement adds factors.
  • Do not perform leaning or balancing challenges to verify the diagram.
2. Aim a direction before adding speed: An arrow points left while its target lies right. What direction repair fits?
Need a hint?
  • Speed along the wrong direction does not correct its aim.
  • A top-down straight-line model omits gravity and spin; do not claim a complete real trajectory.
3. Calculate a paper target offset: Fictional case 5: resultCoordinate=6, targetCoordinate=2. What is the modeled result using the stated method?
Need a hint?
  • Use result minus target and retain the direction.
  • A paper offset measures the diagram, not a learner’s motor skill.
4. Change one feature and recheck: An arrow points down while the target is above. Which repair fits?
Need a hint?
  • Match the repair to the observed error.
  • Use the same criterion after revision; do not confuse paper success with physical mastery.

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

Draw a block base 0–10 with weight line 5, then a target right of a release point with result 8 and target 6. Explain support, offset and a relevant correction.

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

  • Use only the pretend details. Do not share private information about yourself or someone else.
  • Use at least two ideas you practiced in this unit.
  • Show the order or calculation, or point to the clue that helped you choose.
  • Keep the task’s safety rule, help step, or another way to take part.
Compare with a model response

Five lies inside the support with margin in the static block model. The paper offset is 8−6=2 grid units right. A direction or aiming-parameter revision must use that supplied evidence and be rechecked against the target. No balance or throwing performance was assessed.

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