Rotation (quantity)

Rotation is when something goes round and round in a circle. It's like when you spin around in circles or when a wheel turns.

Rotation can be measured using a special unit called degrees. Degrees help us measure how much something has turned.

Imagine you and your friend are both standing outside and you start walking. You decide to walk in a big circle while your friend stays in one spot. After you finish walking in the circle, you both notice that you are facing a different direction.

Your friend didn't move, so we say that they didn't rotate. You, on the other hand, walked in a circle and rotated. This rotation made you face a different direction.

Now, let's imagine you have a spinning top. When you spin it really fast, it keeps going round and round in circles. This spinning is also rotation.

Rotation is useful in many things. For example, when we measure time, we use a clock with big and little hands that rotate around the numbers. When the big hand goes all the way around the clock once, it has rotated 360 degrees. We say that it has made one complete rotation.

Rotation is also important in sports. When a gymnast does a somersault in the air, they are rotating. When a basketball player spins to avoid a defender, they are also rotating.

So, rotation is when something goes round and round in a circle, and we measure it in degrees to understand how much it has turned.