Grade(s): 4-12
Key to Geometry offers a non-intimidating way to prepare students
for formal geometry as they do step-by-step constructions. Using
only a pencil, compass, and straightedge, students begin by
drawing lines, bisecting angles, and reproducing segments. Later,
they do sophisticated constructions involving over a dozen steps
and are prompted to form their own generalizations. When they
finish, students have been introduced to 134 geometric terms and
are ready to tackle formal proofs.
Price: $ 3.25
