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Conceiving Phase Shift as Time Travel

Jeffrey Connelly and Pablo Garcia

Two teachers use homemade pendulums for their students to explore phase shift in sine curves. The use of Desmos’s Activity Builder enabled students to become mathematical explorers and supported their sense of mathematical agency.

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It’s a Wrap: A New Dimension for Sinusoids

Anna Wan and Jessica Ivy

An activity connects the features of sinusoid curves to tangible manipulatives printed on a 3D printer.