Across
- 2. 3D object with two identical and parallel bases
- 4. Van hiele level 2 Identifies shapes using properties like equal sides or angles.
- 7. holding an object to feel how heavy it is
- 8. attribute of measurement related to how long something is
- 11. theorist known for levels of geometric reasoning
- 13. the space an object occupies
- 14. the amount a container can hold
- 15. agreed unit of measurement, like metre or kilogram
- 16. Van hiele level 0 Student cannot yet identify shapes as shapes.
- 21. tiling a surface using one or more geometric shapes with no overlaps or gaps
- 22. Van hiele level 3 Understands relationships between properties (e.g., a square is a rectangle).
- 24. tool used to measure weight or mass
- 25. a transformation that slides a shape without rotating
- 26. Van hiele level 1 Recognises shapes based on appearance (e.g., “looks like a triangle”).
- 27. 3D object with one base and triangular sides
- 28. a transformation involving turning around a point
Down
- 1. the amount of matter in an object
- 3. a transformation that flips a shape over a line
- 5. Describes how students must move through each van Hiele level in order.
- 6. The most important factor influencing level progression (not age).
- 9. The process students develop through van Hiele’s stages.
- 10. type of time calculation involving start and end points
- 12. Van hiele level 4 Uses logical reasoning and proofs to justify shape properties.
- 16. a 2D shape made up of straight sides
- 17. Van hiele level 5 Theoretical level involving systems like non-Euclidean geometry.
- 18. an approximate calculation or judgement
- 19. the amount of surface a shape covers
- 20. a transformation that resizes a shape
- 23. general term for changing a shape's position or size