Mass and capacity - Measure mass 2 - Presentation

In a series of engaging activities designed to enhance their understanding of measuring mass, students are encouraged to explore the relationship between grams and kilograms. The lesson begins with a discussion prompt, asking students to recall how many grams are in a kilogram, setting the stage for deeper learning. A variety of tasks are presented, where students are asked to interpret weights on scales and relate them to the concept of a number line. For example, they may see a scale with 1 kg weights and additional grams, and they must determine the total mass shown. This approach helps to visualise and understand the incremental nature of mass and its measurement.

Further activities include completing sentences to express the mass of different items, such as a chicken or potatoes, in kilograms and grams. Students are challenged to draw arrows on scale representations to indicate specific masses, thereby connecting the theoretical knowledge with practical visualisation. The lesson also involves reasoning exercises, where students use given information about one object's mass to deduce the mass of others. These exercises encourage critical thinking and application of mathematical concepts. Finally, the lesson concludes with an opportunity for independent work, where students record the mass of objects in both grams and kilograms, and a discussion about the relevance of measuring mass in everyday life.