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Mathematics

Geometry

32 lessons · topologically ordered (prerequisites first).

  1. 1
    3-D shapes
    Ages 4–6 · high
  2. 2
    2-D shapes
    Ages 4–6 · high
  3. 4
    Positional Language
    Ages 4–6 · high
  4. 5
    Types of angles (age 8+)
    Ages 8–12 · high
  5. 6
    Transformations on a grid
    Ages 8–12 · med
  6. 7
    Nets of 3-D Shapes
    Ages 8–11 · med
  7. 8
    Patterns & Sequences
    Ages 6–7 · low
  8. 10
    3-D shapes (age 5+)
    Ages 5–6 · high
    • 2-D shapes (hard)
    • 3-D shapes (hard)
  9. 11
    Flat vs Solid Shapes
    Ages 5–6 · low
    • 2-D shapes (hard)
    • 3-D shapes (hard)
  10. 12
    Turns & Directions
    Ages 5–6 · high
    • Positional Language (hard)
  11. 14
    Angles in triangles (age 6+)
    Ages 6–7 · high
    • 2-D shapes (hard)
    • 3-D shapes (age 5+) (hard)
  12. 15
    Edges, vertices, and faces
    Ages 6–7 · med
    • 3-D shapes (hard)
    • Nets of 3-D Shapes (soft)
    • 3-D shapes (age 5+) (hard)
  13. 16
    Building & Drawing Shapes
    Ages 5–6 · low
    • 3-D shapes (age 5+) (hard)
  14. 17
    Combining Simple Shapes
    Ages 5–6 · low
    • 2-D shapes (hard)
    • 3-D shapes (age 5+) (soft)
  15. 18
    2-D faces on 3-D shapes
    Ages 6–7 · low
    • 2-D shapes (hard)
    • Flat vs Solid Shapes (hard)
    • 3-D shapes (hard)
  16. 19
    Position, direction, and movement
    Ages 6–7 · high
    • Positional Language (hard)
    • Turns & Directions (hard)
  17. 20
    2-D shapes (age 6+)
    Ages 6–7 · high
    • Angles in triangles (age 6+) (soft)
    • 2-D shapes (hard)
    • 3-D shapes (age 5+) (hard)
  18. 21
    Building with 3-D Shapes
    Ages 6–7 · low
    • Building & Drawing Shapes (soft)
    • 3-D shapes (hard)
  19. 22
    Composing Shapes
    Ages 6–7 · low
    • 2-D shapes (hard)
    • Combining Simple Shapes (hard)
  20. 23
    First Quadrant Coordinates
    Ages 8–9 · high
  21. 24
    Understanding angles
    Ages 7–8 · high
    • 2-D shapes (age 6+) (soft)
  22. 25
    Angles in triangles (age 7+)
    Ages 7–8 · high
    • Angles in triangles (age 6+) (hard)
    • 2-D shapes (age 6+) (hard)
  23. 26
    2-D shapes (age 7+)
    Ages 7–8 · med
    • 2-D shapes (age 6+) (hard)
    • Nets of 3-D Shapes (soft)
  24. 27
    2-D shapes (age 8+)
    Ages 8–10 · med
    • 2-D shapes (age 6+) (hard)
    • Transformations on a grid (hard)
  25. 28
    Sorting 2-D and 3-D shapes
    Ages 6–7 · low
    • 2-D shapes (age 6+) (hard)
  26. 29
    Describing Movements
    Ages 8–9 · med
    • First Quadrant Coordinates (hard)
    • Transformations on a grid (hard)
  27. 30
    Right Angles & Turns
    Ages 7–8 · high
    • Understanding angles (hard)
    • Types of angles (age 8+) (soft)
  28. 31
    Understanding angles (age 8+)
    Ages 8–9 · high
    • 2-D shapes (age 6+) (hard)
    • Angles in triangles (age 7+) (hard)
  29. 33
    Lines of symmetry
    Ages 8–9 · med
    • 2-D shapes (age 8+) (hard)
    • Transformations on a grid (hard)
  30. 34
    Types of angles
    Ages 8–9 · high
    • Right Angles & Turns (hard)
  31. 35
    Parallel and perpendicular lines
    Ages 7–8 · high
    • Right Angles & Turns (hard)
    • Positional Language (soft)
  32. 37
    Coordinates (age 8+)
    Ages 8–9 · high
    • First Quadrant Coordinates (hard)
    • Understanding angles (age 8+) (soft)