The document provides instructions for a geometry drill involving proving triangles are congruent. It gives an example where the midpoint E of line segment MJ is given and the perpendicular line segment TE is drawn. Students are asked to prove that triangle TEMJ is congruent using new shortcuts. It recalls the definition of congruent triangles and introduces the acronym CPCTC, which stands for "Corresponding Parts of Congruent Triangles are Congruent". An example is then given to copy and prove, where it is given that line segments FG and OG are congruent and GR bisects FO, and students are asked to prove that angles F and O are congruent.

1. 12/10/12 Gt Geometry Drill
·Given E is the midpoint of MJ; TE
perpendicular to MJ
·Prove Triangle
T
M E J

2. Geometry Objective
·STW prove triangles are
congruent using our new
shortcuts!

3. Recall
·According to the definition of
congruent triangles If two triangles
are congruent, then their
corresponding parts are congruent.

4. CPCTC
·Corresponding
·Parts of
·Congruent
·Triangles are
·Congruent

5. Copy and Prove
·Given:FG = OG,
GR bisects FO
·Prove:ÐF @ ÐO