3-TAS-05 Sundials and Reactions

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Outcomes

• Pupils can explain how a sundial is used to measure time
• Pupils understand the concept of reaction time, the factors that affect it and can recall one way of measuring reaction time

Starter

• Display images of different sundials, progressing through time; Show time-lapse video of sundial, an example can be found here

Main Body of Lesson

• Pupils in groups of ≤4 research and produce two minute talks on:

1. the celestial basis of time;
2. sundials and gnomon;
3. water clocks and hourglasses;
4. mechanical clocks;
5. quartz crystal clocks;
6. Atomic clock

Plenary

• Pupils present to the rest of the class

Homework

• Produce poster about their area of research

Additional Information

Resources Required

• Library

Skills Addressed

• Public speaking, communication, research