Mass, Capacity, Temperature - Four operations with volume - Presentation

In a comprehensive lesson centred around the concept of volume, students are engaged in a series of activities designed to deepen their understanding of measuring and comparing the volumes of liquids. The lesson begins with a discussion prompt, encouraging students to recall the definition of volume. To warm up, they are presented with part-whole models to complete, which involve adding and subtracting measurements like 20ml, 10ml, and 40ml to reach totals such as 90ml or 50ml. These exercises serve as a practical introduction to volume and set the stage for more complex tasks that follow.

Moving on to the main activities, students are tasked with identifying midpoints on a partially completed scale, which is a crucial skill for understanding measurements and scale readings. They are then given a part-whole model and a bar model to determine missing parts through addition and subtraction, such as finding the unknown quantity that, when added to 17, equals 75. The lesson also includes reasoning exercises, where students apply their knowledge to real-world scenarios, like calculating the total capacity of a barrel based on the volume of water it holds when half full. Finally, independent work challenges students to calculate individual and total volumes in jugs, compare volumes using addition and subtraction, and estimate capacities, reinforcing their grasp of volume measurement and its applications.