M2.6.4 For the adult

Grams and kilograms

Is a big thing always heavier than a small thing?

What this chapter teaches

Light things are weighed in grams and heavier things in kilograms, and 1 000 g make 1 kg. A bigger thing is not always heavier, because weight does not depend on size alone. A balance shows which of two things is heavier.

Three questions to ask

There is no one right wording. Listen for the idea.

  1. Which feels heavier to you, a big pillow or a small stone, and how could you check?
  2. A scale arrow is past 2 kg. How do you read the weight from the marks?
  3. How would you say 2 kg 300 g using only grams?

After the chapter, the learner can

  • Weigh things on a scale in grams and kilograms
  • Read a scale where the marks go up in 100 g
  • Change 2 kg 300 g into 2 300 g

What they copy into their notebook

1 000 g make 1 kg. 2 kg 300 g is 2 300 g. On a scale, count 100 g marks from the last number. Big is not always heavy.

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