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6. Ask them to think of the brightness or darkness of the light as a number not a word description. For example, “I know this is bright because it shows 2000lx”, “I know this is dark as it only shows 100lx”. We are trying to build up the idea of describing by numbers.<br /> | 6. Ask them to think of the brightness or darkness of the light as a number not a word description. For example, “I know this is bright because it shows 2000lx”, “I know this is dark as it only shows 100lx”. We are trying to build up the idea of describing by numbers.<br /> | ||
7. Now a base for comparison has been created, repeat with other things you have selected.<br /> | 7. Now a base for comparison has been created, repeat with other things you have selected.<br /> | ||
- Does the colour make difference?<br /> | :- Does the colour make difference?<br /> | ||
- Does the size of any dark patch make a difference?<br /> | :- Does the size of any dark patch make a difference?<br /> | ||
- Does the opaqueness of the shadow maker make a difference?<br /> | :- Does the opaqueness of the shadow maker make a difference?<br /> | ||
- If you use transparent thing does the colour make difference to the amount of light?<br /> | :- If you use transparent thing does the colour make difference to the amount of light?<br /> | ||
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8. Just explore, keep noting down the discoveries, is there a pattern? Are we starting to see the “shadowness” of shadow? Or is it still to difficult?<br /> | 8. Just explore, keep noting down the discoveries, is there a pattern? Are we starting to see the “shadowness” of shadow? Or is it still to difficult?<br /> | ||
If you have access to enough transparent filters of colour, get the class to look through them and put them in order of brightness! | If you have access to enough transparent filters of colour, get the class to look through them and put them in order of brightness! | ||