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Grade 6 · Math · Unit 14 of 18

Quadrilaterals & Grids

Symmetry, quadrants and moves

What your child practises

Properties of quadrilaterals (symmetry and diagonals), top and front views, coordinates in all four quadrants, and combining slides and flips.

Prince Edward Island Curriculum curriculum outcome: SS5; SS8 · sides and angles of polygons, and plotting points on a coordinate grid

How we explain it

Children can open this short lesson before they practise.

  1. Quadrilaterals have 4 sides. Their parallel sides and equal sides tell the type.
  2. A coordinate grid has four quadrants. Write points as (x, y).
  3. Combine moves one at a time: slide, then flip, then turn.

Example: In which quadrant is the point (−2, 3)? x = −2 means 2 left. y = 3 means 3 up. Left and up is the top-left quadrant (Quadrant II). Answer: Quadrant II

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Which object has a top view that is a circle and a front view that is a rectangle?

    • cone
    • cylinder
    • cube

  2. Question 2

    What are the coordinates of point P?

    -8-8-7-7-6-6-5-5-4-4-3-3-2-2-1-1001122334455667788P
    • (−3, −2)
    • (−2, −3)
    • (2, −3)

  3. Question 3

    Point A is at (1, 1). It is translated 3 right and 2 down. Where does it land?

    • (4, 3)
    • (4, −1)
    • (−1, 4)

  4. Question 4

    How many lines of symmetry does a rectangle that is not a square have?

    • 0
    • 2
    • 5

  5. Question 5

    In which quadrant is the point (4, 5)?

    -8-8-7-7-6-6-5-5-4-4-3-3-2-2-1-1001122334455667788P
    • Quadrant III
    • Quadrant II
    • Quadrant I

  6. Question 6

    What is true about the diagonals of every rhombus?

    • They never cross.
    • They are always equal in length.
    • They meet at right angles.

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