Similarity and Congruence.

This instructional unit is an introduction to the common properties of similarity and congruence. Manipulation of objects leads to a recognition of these properties. The ASA, SAS, and SSS theorems are not mentioned. Limited use is made in the application of the properties of size and shape preserved by similarity or congruence. A teacher's guide is available. Related documents are SE 015 334 - SE 015 345 and SE 015 347. This work was prepared under an ESEA Title III contract. (LS)