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Lesson Planning

Teaching

Activities

  1. Freely explore how the distance of the light source affects the size of a shadow (Yr3&4).
  2. Look for patterns and try to answer questions (Yr3&4).
  3. Take accurate measurements of shadows whilst controlling the distance of the light source (Yr3&4).
  4. Observe a demonstration of light travelling in straight lines to explain the shadow data (Yr3&4).

Investigation - fair testing
The lantern went out and someone with a torch came on. Strange shadows get larger and smaller. Luckily the witnesses took photos. Can you explain what these scary shadows mean? Which suspects were close to the screen? Who was at the back of the stage?
Year 3 - Conduct a fair test to answer a given question with a scaffolded task.
Year 4 - Devise their own fair test to discover how the size of a shadow changes when the light source is moved.

Vocabulary
Light source, shadow, measure, distance, plot, graph, data, fair test, results

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