1.key vocabulary :         Location      Shape       Angle           distance      Pre-image           image   Transformation      Translation     Rotation     Reflection       Clockwise      Counterclockwise

2.Prior knowledge :       Recall the definition of congruence

3.Focus idea or questions

a. How do you identify translation, reflection and rotation?

b.What are the common attributes among translations, rotations and reflections?

c.What are the differences between them?