Class began with the ChemCatalyst from the Lesson 72 PowerPoint. With the lesson focusing on balancing chemical equations, we worked through the ChemCatalyst equation with a focus on differentiating coefficients and subscripts (slides 11 and 12). We practiced balancing a few more equations and then students received the Lesson 72 Worksheet to work through. For homework, students were assigned questions 2 and 4 from the textbook.
For students who would like additional instruction around balancing equations and enjoy learning by watching videos, I recommend Tyler DeWitt’s videos Introduction to Balancing Equations (above) and Balancing Chemical Equation Practice Problems (below):