Idea 15of 15Builds onTurn about a point
Slide, flip or turn?
How can you tell which move changed a shape?
Today you'll discover
- what a slide keeps
- what a flip changes
- what a turn changes
Think firstA flag that points right
Which move makes the flag point left, like its image in a mirror?
Decide first, then press Next. Compare each new flag with the faint outline of the start.
Four small grids in a row. The first holds a flag on a pole, pointing right, with a dot at its turn point. The second shows it slid 2 squares right, still pointing right; the third shows it flipped across an upright line, pointing left; the fourth shows it turned a quarter turn clockwise, its pole lying flat and the flag pointing down. Each has a faint outline of the start.
See the whole ideathe big idea and the key word, in one place
The big idea
A slide moves a shape, a flip mirrors it, and a turn spins it; its size never changes.
Ask two questionsDoes it face the same way? Then it was slid. Is it a mirror image? Then it was flipped. Otherwise it was turned.
Key word
- transformation
- a move that changes where a shape is or which way it faces: a slide, a flip or a turn
Ready to use it?
- Say whether a shape was slid, flipped or turned.
- Describe the move in words.