tweening and recap

A timeline is a way of showing different events or frames on a line. It is useful for showing how many frames are in an animation.

Key-frames are used to highlight a critical change happening. If you change the FPS, the number of frames shown per second changes, e.g. 4 fps shows four frames per second, 24 fps shows 24 twenty four frames per second.

Onion skinning is a way to show the previous position of a key-frame to another key-frame to highlight the position.

 A layer is a way to show different parts of an object and to move or edit them independently, whilst being able to move the whole object all together.

A symbol is an advanced copy and paste- you can copy and drag/paste an image or symbol, whilst being able to edit it just like layers, without having to reform the whole thing.