Knowledge and Understanding

: Tool Time

Approach: One to one

Level: Year 4 and year 8

40k

Resources: Metal can-opener with twisted handles; small can of spaghetti.

Questions/ Instructions:

In this activity I want you to try to explain how something works.
Give student the can opener
Have a look at this piece of equipment.

% responses

1. What is this used for?

Knew use

100

2. Do you have one like this at home?

Yes

3. Have you used one of these?

Have used one

If the student doesn't know, tell them it is a can opener. Give the student the can.

4. Here is a can. Can you explain to me how the can opener works without opening the can?

Explanation of use
full and clear
partial
inadequate

15
52
33

35
50
15

5. Why do you think the flat piece of metal has been twisted?

Reason for twisted handles

6. Have you any ideas on how this can opener could be improved so that when people see one in shops they would really like to buy one?

Good ideas for improvement
operational
decorative

39
47

59
60