In this lecture, students learn the basic concept of measurement, including mass, capacity, and length. They are introduced to standard units like grams (g) and kilograms (kg) for measuring weight, milliliters (ml) and liters (L) for measuring liquids, and centimeters (cm) and meters (m) for measuring length and height. Through various examples, students understand which unit to use for everyday objects—like measuring the weight of a chip packet in grams or the height of a pole in meters. They also solve simple addition and subtraction problems involving these units, such as 37 cm + 18 cm = 55 cm or 93 L − 47 L = 46 L. The lecture also includes word problems to help students apply what they’ve learned in real life—for example, finding how much ice-cream is left after selling some, or comparing the lengths of two wires. Overall, the lesson builds a strong foundation in using measurement in daily life.