Combining Simple Shapes
Compose simple shapes to form larger shapes (e.g. two triangles make a rectangle)
Share and support
Entire curriculum
1590 concepts · 8 subjects
Compare teaching approaches
Teaching approaches
Gakuva’s recommended starting approach is selected. You can still compare every option.
2 approaches
Small shapes can combine into a bigger shape. Two identical right triangles can join along the long side to make a rectangle. We fit edges like puzzle pieces.
Spend about 10–15 minutes joining two triangles into a rectangle and naming the new shape.
Combine specified smaller shapes to fill a rectangle and hexagon without gaps or overlaps.
Combine specified smaller shapes to fill a rectangle and hexagon without gaps or overlaps.
Family records and proof options
Keep a record of your learning
Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.
Learning resources
External links for extra practice. They do not replace Gakuva’s teaching approach.
No additional resources are listed for this topic.
The teaching approach appears above.
Check understanding
- Join two triangles to make a rectangle or larger triangle
- Use pattern blocks to fill a hexagon outline
- Create a picture or design by combining basic shapes
“Can your child fit smaller shapes together to make bigger ones — like combining two triangles to make a rectangle?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Geometry
- Age range
- Ages 5–6
Standards