TRANSFORMATIONS & GEOMETRIC PROOF
bases the concept of congruence on rigid motions, so before the familiar
congruence postulates and theorems, students must identify the transformation
set necessary to move one figure onto the second, with justification.
This does lead to the standard congruence theorems, which can then be
used to prove further results. We will practice exploring and reasoning
about congruence from multiple perspectives, with assistance of the NSPIRE app
on the IPAD - hands-on. For many of us, this will be a challenge.
Come take the challenge with us.
Secondary Mathematics Coach
Seattle Public Schools
T3 Regional Instructor