Open and Shut
Legend
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Orientation Clip |
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Handout |
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Lesson Plan |
| Orientation Clips coming: A note about the Orientation Clips for this Exploration, and what do without them | |
| 100 Doors: More opening and closing doors than your parents would ever let you! | |
| A Prop to Play with: A sheet with 100 doors on it | |
| Buttons and Boxes: Fun with a handful of buttons ... or pebbles | |
| Squares: Squaring up those boxes of buttons | |
| Circles and Stars: How to make a star from a circle and when it works best | |
| Degenerate Stars: Sometimes stars don't get spikes ... why? | |
| Back to the Doors: What do the buttons have to do with the doors? | |
| A Different Pattern: Seeing a different pattern suggests an amazing fact about 1 + 3 + 5 + ... + 1001 | |
| Rectangles with Partners: What Euclid would do with a bunch of buttons | |
| The Possibilities of Working Together: Linear combinations of buttons and what that means about buttons in the middle | |
| Open or Shut?: Crib notes on playing with doors. | |
