This engaging lecture introduces young learners to the concept of mass and helps them understand how to measure weight using standard metric units – kilograms (kg) and grams (g). Through real-world examples, students learn to: Identify and use metric units of mass Add and subtract masses without carrying or borrowing Convert between kilograms and grams Solve real-life word problems related to mass Practice through a comprehensive test: MCQs, Fill in the Blanks, and Matching Questions Includes detailed examples like: Mass of everyday items Converting units (e.g., 1 kg = 1000 g) Worked-out solutions to Exercise 3 & 4 (pages 102, 103, 106) Word problems featuring mass of food items, shopping bags, and more!