Tustin High School CHEMISTRY OBSERVATIONSWhat occurred today? Today, chemistry teachers at Tustin are preparing their students to learn more about stoichiometry by introducing them to units and by helping students realize the importance of relating quantities. The lesson helped students by having them bring in their own ideas, and by allowing them to actively work with everyday quantities. Since teachers were aware of the difficulties students have with math, it was very amazing to see how teachers were adjusting their lessons to better support their students. Also, from observing all three teachers, it was evident that the lesson was purely a team effort done by the Chemistry Team. What is stoichiometry and why is it important to learn? The lesson introduced students to key mathematical techniques and ideas used in stoichiometry. Stoichiometry comes from the idea that mass is conserved during a chemical reaction, where reacting molecules have the option to break or form new bonds to produce new molecules. During this process, students will realize that the number of atoms of each element should be equivalent before and after the reaction. With this new insight, students are able to relate quantities of reactant to know how much product will be produced during any given reaction. Stoichiometry plays an important role in understanding how the components of a chemical reaction are related to one another and can help students give meaning to numerical values commonly found in chemistry. sharon stoneUndergraduate Research Assistant
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