Shapes have fascinated humans since the beginning of time. The polyhedra, or solid shapes with flat polygonal faces, is one of such shapes. One of the most appealing types of polyhedra is the icosahedron, most likely due to its high degree of symmetry. In the image above, you can see that the view from the…
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When my daughter was 6 years old, her uncle gave her this figurine, a couple of inches tall. She asked if it was made of pure gold. Well, let’s see how much it would cost if it were. At the time of this writing, gold costs about $37.88 per gram. The density of gold is…
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As we huffed and puffed our way up the hill, we saw this sign. I thought this would be a good time to start talking about measuring angles with my incoming 4th grader. What would happen if the cars were parked at an angle of 180 degrees to the curb? What about 0 degrees? How many…
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