Students use balls and disks to prove the general formulas for sums of squares and cubes.

Supplementary Materials

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Contributor Notes

Tongta Somchaipeng, fedutts@ku.ac.th, is a doctoral student in STEM education at the Institute for Innovative Learning, Mahidol University, in Bangkok, Thailand.

Tussatrin Kruatong, iltkt@mahidol.ac.th, teaches physics at the Institute.

Bhinyo Panijpan, directil@mahidol.ac.th, a biophysicist by training, is fascinated by symmetry and pattern in nature and mathematics. All are interested in hands-on science and mathematics activities and professional development.

(Corresponding author is Somchaipeng fedutts@ku.ac.th)
(Corresponding author is Kruatong iltkt@mahidol.ac.th)
(Corresponding author is Panijpan directil@mahidol.ac.th)
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