Geometry is the maths of shapes, lines and corners. Look around — your window, a slice of pizza, a road sign. They are all geometry!
In this lesson you will spot shapes, count their sides and corners, build angles, and discover symmetry. Tap Next to begin! ✨
A point is a tiny dot — a single spot. A line joins points together. Shapes are made from straight lines that meet.
Tap the two dots to draw a straight line between them! ✏️
Flat shapes are called 2D shapes. We name them by how many sides they have. Look at the shape, then tap its name!
How many sides does this shape have? Tap its name.
A side is a straight edge. A corner (also called a vertex) is where two sides meet. Tap each corner of this shape to count them! 👆
An angle is the amount of turn at a corner. A perfect square corner is a right angle (90°) — like the corner of a book. Slide to open and close the angle!
Can you make a right angle? Get the slider to 90°! 🎯
A shape has a line of symmetry if you can fold it so both halves match exactly — like a mirror. Tap each picture: does the dotted line make matching halves?
Tap a picture if its two halves match across the dotted line.
You are now a geometry explorer. Here is everything you learned:
Now go and spot some shapes around you. Geometry is everywhere! 🌟