Geometry, Teacher\'s Edition

TABLE1.4:

Reason Justification

SegmentADbisects segmentBC

SegmentBCbisects segmentAD

Given

SegmentAM∼=segmentDM Midpoint Postulate

SegmentBM∼=segmentCM Midpoint Postulate

(^6) AMB∼= (^6) DMC Vertical Angles Theorem
4 ABM∼= 4 DCM Side-Angle-Side Congruence Theorem
Neat Idea!Whiteboard makers also make a 2-column personal whiteboard. You could purchase these to perform a
spontaneous check or you could make your own. Purchase plain white paneling from a home improvement store.
Cut out the desired lengths then use electrical tape to construct your proof T-chart.
Chapter 1. Geometry TE - Teaching Tips