Lesson 14 Tents
Lesson plan
| Piagetian Level | Learners Thinking and abstract of the activity | ||
|---|---|---|---|
| 3A Early Formal |
 Higher level realisation: 'if Pi can NEVER be calculated exactly, it must be a different kind of number'. |
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| Reflect simple shapes in a mirror-line | 'so with the hexagon the perimeter is exactly 3 times the radius but the circle must be a little more' | ||
| 2B* Concrete Generalisation |
'it looks as though the circumference of all half circles is just over 3 times the radius' |
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'the height is the radius or half the base' |
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| 2B Mature concrete |
'B and F look right' 'a half circle is widest at the bottom so not E'  |
'mine is three and a bit'
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| 'it can't be D because it's lopsided' | |||
| Middle concrete |
Episode 1 Shapes for tents |
Episode 2 Radius to semicircle ratio |
Episode 3 Circle as limiting case |
