MyMathKidK-8 Curriculum

Kindergarten Shapes: Sides and Corners

Count sides and corners

What You'll Learn

Count the sides of shapes
Count the corners of shapes
Know that circles have 0 sides and 0 corners

📖Counting Parts of Shapes

Sides are the straight lines. Corners are where the sides meet. A triangle has 3 of each. A square has 4 of each.

💡

Touch each side as you count. Touch each corner as you count!

Worked examples

Real problems from the practice worksheets, solved one step at a time.

Example 1
How many sides does a triangle have?
1. Put your finger on one straight side of the triangle.
2. Trace each straight side and count as you go.
3. A triangle has 3 sides.
Answer: 3
Example 2
Which shape has 0 corners?
1. Picture each shape and count its corners.
2. A corner is where two straight sides meet.
3. A circle has 0 corners, so the answer is the circle.
Answer: circle
Example 3
Which shape has 4 sides: a rectangle or a circle?
1. Picture each shape and count its sides.
2. Sides are the straight lines around a shape.
3. A rectangle has 4 sides, so the answer is the rectangle.
Answer: rectangle

Practice Worksheets

Counting Sides (Set A)

Count the sides of shapes

Counting Sides (Set B)

More sides practice

Counting Corners (Set A)

Count the corners of shapes

Counting Corners (Set B)

More corners practice

Sides and Corners (Mixed)

Practice both sides and corners