Mass and capacity - Compare mass 2 - Presentation

In a series of engaging activities designed to teach the concept of mass and capacity, students are invited to explore and compare the mass of various objects using grams and kilograms. The lesson prompts children to think critically by asking questions such as "Which is heavier; 3000g or 3kg?" and encourages them to explain their reasoning. This forms the basis of understanding how to compare different units of measurement. Students are then presented with practical examples involving common items like pineapples and apples, where they must determine which item is heavier or lighter, fostering their ability to use comparative language effectively in context.

Further deepening their comprehension, students are tasked with activities that require them to use symbols such as less than (<), greater than (>), or equal to (=) to compare the mass of pairs of objects. These comparisons range from simple, such as 300g versus 3kg, to more complex scenarios involving multiple items like packs of carrots and cartons of orange juice. The lesson culminates in reasoning exercises where children must draw conclusions based on the weights provided and match masses to the correct child, promoting higher-level thinking and problem-solving skills. Independent work reinforces these concepts, allowing students to apply their knowledge to various scenarios and discuss their findings, ensuring a robust understanding of mass and capacity.