In today’s math lesson, students will compare the masses of various objects, including a can of food, a kitchen towel roll, and a heavy book. The goal is to understand vocabulary related to mass and to learn how to compare more than two items through direct comparison. Students are encouraged to find similar objects at home, feel their weights, and estimate which is heaviest. The instructor demonstrates the comparison using a balance scale, showing that the book and the can of food are heavier than the kitchen towel roll.