GeometryAngle Flash
Crookle, a monster made of angles, creeps towards the zellige star. Each player has a hedgehog and their own buttons: the first to give the correct answer casts a spell and scores a point. At every correction, a set square lands on the angle to show how to check it.
Start the game
The game opens full page, with no ads and no sign-up.
- Level
- Grades 3–4
- Way of playing
- Solo or in teams
- Suggested time
- 10 to 15 min
- Game languages
- Arabic · French · English · Spanish
- Price
- Free
What pupils practice
- Recognize acute, right and obtuse angles, even when the figure is turned.
- Pick out the right angle among angles that are almost right.
- Compare angles without being fooled by the length of the sides.
- Count the right angles in a shape and spot angles in everyday life: a clock, a door, a roof, a fan.
How to play
- Choose the number of players (1 to 4), then the activities and their level: several can be mixed.
- Set the number of questions (5 to 20), the answers offered (3 or 4) and the time per question.
- Each player answers on their own buttons. A mistake locks their buttons until the next question.
- At the correction, the set square appears on the angle with the correct answer. The final ranking shows points, mistakes and best time.
In the classroom
On a multi-touch board, two to four pupils play at the same time; the others write their answer on slates before the correction.
After each question, have pupils repeat the set square check: corner on the vertex, one edge along one side of the angle.
Useful settings
- Five activities: type of angle, find the right angle, compare angles, angles in shapes and angles in real life.
- Level 1: clear angles. Level 2: nearly right angles, turned shapes and tricky sides.
- The game can be played in English, French, Spanish and Arabic.
