ExplorerGrades K–1⏱ 10 min
Shapes around us
Count sides and corners, turn and stretch shapes, then find every triangle in the picture.
Standards: K.G.A.2K.G.B.4
1Wonder
Look around you. A clock, a window, a door, a slice of pizza. They are all made of shapes! How can we tell which shape is which?
2Explore
This activity needs a bigger screen
Turn your phone sideways, or open this lesson on a tablet or computer. The explanation and quiz below work here.
What to do
Shape
Size
Try this
- Pick the triangle and press Count sides. Then Count corners. What do you notice?
- Press Turn it and Change it. Is it still a triangle?
- Try the square, the rectangle and the hexagon. How many sides does each one have?
- Choose Find them and tap every shape the game asks for.
3Explain
Step 1 of 6
Circles are round
A circle is round all the way around. It has no straight sides and no corners. Big or small, it is still a circle.
Name a shape by its sides and corners
Count the sides and corners. Turning a shape or making it bigger or smaller does not change its name.
4Practice
Question 1 of 5
What shape is this?
5Recap
- Circle: round, no sides, no corners.
- Triangle: 3 sides, 3 corners.
- Square: 4 equal sides, 4 square corners.
- Rectangle: 4 sides, 4 square corners.
- Hexagon: 6 sides, 6 corners.
- Turning a shape or changing its size does not change its name.