Author:
– SEPTIARINI DWI NURSHANTI (SMPN 121 Jakarta)
According to a government official, Jakarta produces around 7000 tonnes of waste per day, and from that amount, 1900 -2000 tonnes are plastic. Starting from my concern on the growing number of plastic bottle waste coupled with my desire to use out-of-the-box physical manipulative, it occurred to me to use the plastic bottle to make transparent cubes. The cubes will be used during a mathematics lesson on the topic of Surface Area of Cube.
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