Area and Perimeter — Free Geometry Game for Kids 6–10

A knight faces cartoon monsters with his shield, keeping a child safe behind him

New from Dad4Kids Clean YouTube for kids For families with traditional values, hand-picked by parents. Open →

Area and perimeter stop being two formulas to mix up the moment a child has to fence a yard and then floor it. In this one they build on a squared grid: “the yard is 5 by 3, you need the perimeter — the length of the fence”, and the fence goes up square by square.

Thirteen chapters, grades 1 to 4

The chapters are laid out by school year, not by mood: reading a grid map and line segments (grade 1), polylines and right angles and rectangles (grade 2), perimeter, area and symmetry (grade 3), radius and circles, coordinates and scale (grade 4), and a final chief-engineer chapter that mixes them.

Build it, then defend it

Each mission is built first — draw a rectangular warehouse 6 squares long and 4 wide, or pick which drawing has the right angle “like the letter L” — and defended second. The building is the answer; the defence is the reward.

Free, in the browser

No download, no account, no ads. Every question is read aloud, and progress is saved on the device.

Free math games by grade and skill

math games for kindergarten — counting to 5 and up, an elf archer that adapts to your child
math games for 3rd graders — short word problems, add and subtract past 100, first division
math games for 4th graders — multi-digit multiplication, factors, multiples and equivalent fractions
math games for 5th graders — decimals, percent, area and perimeter, solving for x — it picks by skill
equivalent fractions — 500 levels from what a fraction is to percent
multiplication table game — the whole times table, then division as its reverse
counting money — count coins, compare prices, give change, keep the treasury

How to play

Each mission: a short briefing with the goal and skill → paused planning (build walls, place objects, draw routes and circles right on the grid map) → the “Run the assault” button → the battle simulation. A mistake? The robots break through exactly there, the cell lights up, and you can fix it right away.

What your child learns

Trains elementary-school geometry: spatial relations and routes, segments and length, shapes on a grid, polylines and right angles, perimeter, area and coverage, comparing areas, composite figures, symmetry, circle radius, and recognizing 3D solids.

The science behind the games

Every Dad4Kids game is built on one simple truth: children want to play, not study — so we turn learning into a game worth replaying. The method draws on peer-reviewed research in game-based learning, motivation, and how memory works.

FAQ

Is this a game or a math drill?

Both: geometry here isn't questions between levels — it's the win condition itself. A wrong perimeter and the robots drive through the gap in your wall.

What age is it for?

The first chapters are grade 1 (left/right, routes); later it gets harder — perimeter and area around grades 2–3, composite figures and symmetry around grade 4.

Does it need fast tapping?

No. During design the battle is paused — the child thinks as long as needed. Success depends on the plan, not reflexes.

What happens on a mistake?

The game shows the FIRST specific mistake right on the map: an uncovered cell, an unequal side, too small a radius. Fix it and go back into battle.

Is it free?

Yes — free, no ads, right in the browser on a tablet, phone or computer.