Transformations change the size or position of shapes. In the exam you may be asked to draw and/or describe transformations. In Module 8 (M8), there may be questions on any of the transformations work ...
Materials were written for an entire year's course in geometry in which transformations were used to develop the concepts of congruence, similarity, and symmetry, as well as being a vehicle for proof.
Journal of the Washington Academy of Sciences, Vol. 31, No. 11 (November 15, 1941), pp. 441-453 (13 pages) ...