Using objects to model real problems
Use objects, drawings, or simple number sentences to represent a real-world situation (early mathematical modelling)
What a learner can do afterwards
- Draw a picture or use objects to represent a simple real-world situation involving counting or comparing
- Write or dictate a number sentence to describe a real-world situation (e.g. 'I had 5 apples and ate 2')
- Use the model to answer a question about the situation
1 · Read
A math story is something that really happens. You can show it with pictures, objects, or numbers. The sign + means put together, the sign − means take away, and the sign = means the same amount.
Leo had 5 apples. He ate 2. Number sentence: 5 - 2 = 3.
First draw or use objects for the story. Then write the number sentence.
Turn what happens into pictures, then into a number sentence.
2 · Watch
Take it off screen
Where it sits
This opens up
Where this leads
Jobs that lean on this skill. Follow one to see everything it is built on.
17 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.