Tutorial
1. Open tween.fla from the tutorial images you downloaded (see: Download)
2. Double-click the red arrow on the motion tween layer to see the tweening settings in the frame properties (select tweening tab).
3. Create a new layer and a new object in frame 1 of that layer. 4. Insert a keyframe in frame 10 and move or resize your object or create a new object on a completely different shape (be sure not to group any of these objects or tweening will not work) 5. Now double-click any frame between your 2 keyframes, select the tweening tab and set the tweening. 6. Play your new animation. Show it to your mother.