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Drop the Ruler
You will need:
A 30 cm ruler.
Instructions:
Position a ruler between the person’s finger and thumb at the ‘0 cm’ mark so that the rest of ruler is above your finger and thumb. Get ready, drop the ruler!
How quickly could they catch the ruler? You can measure by looking at where they caught it – how many centimetres does it read, where the finger and thumb are now holding the ruler?
Write down the result in the table below – you might want to let them try 3 times and record their best score.
Who was the quickest to catch the ruler?
Why do you think this is?
Pupil’s comments
Parent’s comments
Person’s name
30
20
10
0
Where the ruler was caught (cm)
Person 1
Person 2
Person 3
Person 4