Shape Helps It Work
Aligned to K-2-ETS1-2 — Next Generation Science Standards.
What this lesson teaches
The shape of a thing helps it do its job.
Worked examples
Example 1
A wheel is round so it can roll, but a box is flat so it can sit still and stack.
Example 2
A spoon has a curved scoop so it can hold soup, but a fork has points so it can spear food.
Example 3
A key is a funny shape on purpose. Its bumps match one lock and no other, which is exactly its job.
Practice questions
- Find something round and roll it, then find something flat and stack it.
- Draw a picture of a wheel and tell why it is round.
- Try rolling a box, then a ball, and tell which shape rolls best.
Watch the lesson
Every lesson comes with a video taught in English and Spanish — the same video the QR code in the printed workbook opens.
▶ Watch this lessonEn español
La forma ayuda a que funcione
La forma de una cosa la ayuda a hacer su trabajo.
Ejemplo 1: Una rueda es redonda para poder rodar, pero una caja es plana para quedarse quieta y apilarse.
Ejemplo 2: Una cuchara tiene una curva para poder sostener sopa, pero un tenedor tiene puntas para poder picar la comida.
Ejemplo 3: Una llave tiene una forma rara a propósito. Sus picos coinciden con una sola cerradura, y eso es justo su trabajo.
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