What is Angle Estimation?
Angles are everywhere!
Angles are the space between two lines that meet at a point. We can estimate angles by comparing them to angles we know well:
the right angle (90°), straight angle (180°), and full circle (360°). With practice, you can become great at guessing angles!
How to Estimate Angles
1️⃣ Find the vertex - the point where the two lines meet
2️⃣ Compare to known angles - is it smaller (acute) or larger (obtuse) than a right angle?
3️⃣ Make your estimate - guess how many degrees the angle might be
Let's Practice Estimating Angles!
Example 1: The Adjustable Angle
Move the slider to create an angle, then try to estimate its measurement!
Current angle: 30°
Example 2: Real World Angles
Look at these shapes and estimate their angles. Then check your answers!
Estimate angle A: °
Estimate corner angle: °
Parent Tips 🌟
- Angle scavenger hunt: Look for angles around your home - doors, clocks, furniture corners. Estimate their angles then measure with a protractor to check.
- Use body angles: Have your child make angles with their arms (90° when arms make an L shape, 180° when arms are straight out to sides).
- Paper folding: Fold paper to create common angles (fold in half for 180°, then in half again for 90°, then once more for 45°).