What Are Special Angles?
Angles are everywhere around us!
Special angles like 90°, 180°, 270°, and 360° appear in many shapes and objects we see every day.
A 90° angle is called a right angle and looks like the corner of a book.
180° makes a straight line, 270° is three-quarters of a circle, and 360° completes the full circle!
Let's Explore These Angles!
1️⃣ Right Angle (90°): The corner of your notebook
2️⃣ Straight Angle (180°): A stretched-out string
3️⃣ 270° Angle: Three corners of a square
4️⃣ Full Rotation (360°): Spinning all the way around
Interactive Examples
Example 1: Angle Detective
Which of these objects has a 90° angle?
Example 2: Spin the Angle
Click the buttons to see different angles:
0°
Notice how at 360°, you're back where you started - that's a full rotation!
Parent Tips 🌟
- Angle Hunt: Go on a scavenger hunt around your home to find examples of these special angles (clock hands at 3:00 = 90°, open book = 180°, etc.)
- Body Angles: Have your child use their arms to demonstrate each angle - arms at right angles, straight out to sides, etc.
- Baking Angles: When baking, show how pizza is cut at 90° angles or how a pie is divided into 45° slices (half of 90°).