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Science Y3/Y4 – Forces – week 9

SLIP, SLIDE, GRIP!

Truth to Teach (Source)

To learn that friction can be vital to ensure safety when we walk, run, etc as well as when we
travel in cars, on bikes, etc

To conduct a survey to see which kinds of soles are the safest to wear.

Way to Work (Means)

1. Review the previous lesson.

2. Show the children pictures of car tyres, tractor tyres, etc or have a selection of tyres
for them to measure the tread. Explain that this is what it means to have tyres checked. Why
is it important to do this?

3. Show the children a display of shoes, slippers, boots, etc. Discuss why the soles are
important in the light of our study of friction.

4. Let the children do wax rubbings of their own shoes as well as some on the display.
Discuss the results.

5. Explain that the experiments to be conducted today will show which kinds of shoes are
safest on carpet, smooth surfaces, grass or similar.

6. Gather back to share results and discuss the fact that sometimes we can increase
friction by having rougher soles or deeper tread on tyres, putting grit on icy roads, etc.
Sometimes we reduce friction by putting oil on objects or soap on fingers to remove rings, etc.
Let the children think of other examples.

7. Let the children suggest why these experiments have shown us how important it is to
learn about forces and to understand how they affect our daily lives. Stress the importance of
having good shoes with rough soles for the winter months especially.

Learning for Life (Fulfilment)

The children should have appreciated the importance of learning about forces for health and
safety reasons.

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