The concept of the mole and how to find the molar mass and percent composition of elements in a compound are often difficult for students to wrap their head around without getting caught up in the calculations.
This is why ChemistryNinja has made this fill-in-the-blank Molar Mass and Percent Composition lesson plan for science teachers. These notes first provide an easy-to-understand analogy using fruits in a barrel for students to connect to grams in a mole. It then introduces the concept of molar mass, and transitions into percent composition using the same analogy as before. The notes end with several examples for students to practice their calculations and master molar mass and percent composition.