Area and Perimeter
Count squares to find area and perimeter, then use triangles and parallelograms.
Counting squares is a friendly way into geometry, and Area and Perimeter draws shapes on a square grid so children can count what they are measuring. They begin by finding the area of rectangles in square units, then compare it with perimeter, the distance around. Each square is one unit, so the difference between the two ideas becomes concrete instead of a pair of formulas to mix up.
Later rounds use shapes made from several rectangles, ask which of two shapes has the greater area or perimeter, and finish with triangles and parallelograms. The game covers a long stretch of elementary geometry, so a child can start by counting and end up using base times height.
What children practice
- Find the area of a rectangle by counting squares or multiplying
- Find the perimeter by adding the sides around a shape
- Tell area from perimeter and choose the right one
- Find the area of L shapes by splitting them into rectangles
- Compare the area or perimeter of two shapes
- Find the area of triangles and parallelograms from base and height
Levels
- Level 1: Area of rectangles
- Level 2: Perimeter and area
- Level 3: L-shapes and other shapes
- Level 4: Compare two shapes
- Level 5: Triangles and parallelograms
How it works
- Five levels run from rectangle area to triangles and parallelograms.
- Each question is multiple choice, and some ask which number sentence gives the area.
- A wrong answer says try again, and a right answer shows the multiplication or counting step.
- Questions can be read aloud using the speaker button.
Best for: A good fit for grades 2 to 6 when a child mixes up area and perimeter or is ready to move from counting squares to formulas.
Tip for parents: Use graph paper or floor tiles. Ask your child to draw a rectangle with an area of 12 square units, find its perimeter, and then see whether a different rectangle with the same area has a different perimeter.
Questions parents ask
Does the game explain the difference between area and perimeter?
Both appear in Level 2. When it asks for area the prompt says each square is 1 square unit, and when it asks for perimeter it says each side of a square is 1 unit, so the units stay clear.
How are L shaped figures handled?
Level 3 shows shapes built from rectangles, sometimes drawn already split into two, and asks for area or perimeter. The explanation after a right answer shows the working, so a child can see why the total is correct.
What does the final level cover?
Level 5 asks for the area of right triangles, other triangles and parallelograms on a grid. Some triangles come with a dashed rectangle around them to show that a triangle is half of a rectangle.
Ready to try it?
Area and Perimeter is free with a parent account. A parent adds a child profile, and the child's progress is saved.