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Horizon
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Horizon

Representations of a problem-based lesson in which students investigate how far away the horizon appears when standing on a sandbar in the middle of the ocean. Using visualization and physical exploration of this natural setting, students pose questions and draw mathematical conclusions, applying the Pythagorean theorem to find unknown side lengths in right triangles and developing an understanding of circle properties such as radius and tangent lines.
Original price was: $20.00.Current price is: $0.00.
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Longitude
Sale

Longitude

Representations of a problem-based lesson where students investigate the mathematical idea of global coordinates through the historical context of the navigational challenges faced by Ernest Shackleton’s Antarctic exploration. The lesson helps them use proportional reasoning to relate quantities such as time, rate, and distance.
Original price was: $20.00.Current price is: $0.00.
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