Guide Questions: 1. How do you know which unit is appropriate to use in measuring the mass of a material? 2. How do you determine the mass of an object if the scale hand is not exactly on a numbered line? V. Synthesis/Extended Practice/Differentiation (if needed): Provide not less than 100 words of reflection about the activity you conducted answering the question "What is the importance of using appropriate units of measurement in your daily life?"
Answer (1)
Choose the unit based on the size and precision needed. Use grams (g) for small/light objects (paper clip, candy), kilograms (kg) for heavier items (backpack, watermelon), and milligrams (mg) for very tiny masses (medicine dose). In daily life, kg is common for groceries; g for recipes.Read the nearest lower marked value, then count the minor divisions to add the fractional amount. If the pointer is between two minor ticks, estimate by halves or quarters. Always check the scale’s least count (value per tick).Reflection: Using appropriate units of measurement is essential because it ensures accuracy, safety, and fairness in everyday tasks. When buying food, kilograms and grams help us pay the correct price. In cooking, precise grams keep recipes consistent and delicious. For health, accurate milligrams prevent overdosing or underdosing medicine. Even in school projects, correct units make experiments reliable and comparable. Proper reading of scales—knowing the least count and estimating between ticks—builds critical thinking and prevents mistakes. Choosing the right unit also improves communication, because everyone understands the same standard, whether in a market, clinic, or laboratory. Overall, correct measurement saves time, money, and lives, and it teaches us to be careful and responsible in our decisions.
