Transform your geometry classroom into a space where students truly think with this thin-sliced BTC Geometry Unit! Designed around Peter Liljedahl’s Building Thinking Classrooms framework, this resource breaks key geometry concepts into small, meaningful “thin slices” that promote reasoning, collaboration, and perseverance. This product includes:Area of Irregular ShapesArea of ParallelogramsArea of TrianglesReasoning with Squares & Cubes