Latest revision as of 13:27, 16 February 2010

Outcomes

• Pupils can analyse results and identify direclty and inversely proportional relationships
• Pupils can evaluate their own practical work and look to improve upon their results

Specification References

None

Starter

• Review practical from previous lesson

Main Body of Lesson

• Go through "what makes a good graph" inluding how to find gradient, scales, labels etc.
• Pupils to use their data from the previous lesson and plot the following graphs:

1. average resistance against length

2. average resistance against area

3. average resistance against 1/area

• Ask pupils why the curved graph is less useful
• Discuss the concept of variables being directly proportional
• Pupils to take some data from their graph to e.g. to predict the resistance for a given length

• Discuss where errors could have arisen
• Discuss improvements which could be made to the investigation

Plenary

• Recap practical methods used, discuss how the investigation could be furthered

Homework

• Revise for end of topic test

Additional Information

Resources Required

Textbook References

Website References

Skills Addressed

Safety/Hazards

• Wires can get quite hot - do not let pupils use currents over half an Amp.

Notes

Electricity Outline

Electricity