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Glen Botha, Independent Practices
May 07

A key concept students need to understand in Chemistry is the idea of indirect measurement, or measuring something by measuring something else, when direct measurement is not possible. Science teacher Glen Botha introduces this concept to his class in preparation for a lab where students will be finding the volume of a piece of aluminum foil. In the process, he also makes reference to two other key scientific concepts– the importance of an equal sign in a mathematical equation, and the method for measuring mass in a Chemistry lab (using an electric balance). Through this process, Mr. Botha is helping his students understand key ideas in depth.