1. This small group activity is designed to help students visualize various spherical harmonics.
2. Students draw a particular spherical harmonic's magnitude and phase at different locations on the surface of a balloon, which represents the domain of the spherical harmonic.
3. The entire class wrap-up discussion includes group presentations of each spherical harmonic, allowing students to gain a visual understanding of the roles of the indices $\ell$ and $m$ in the spherical harmonics.

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