E1Pattern Blocks E2Diagonals of a Quadrilateral E3Approximation of the Circumference of a Circle E6Platonic Solids
D1Constructing Triangles D2Tangrams


D4Tangrams Covers D5Precise Description of Shapes D63D Shapes with Specific Faces D73D Nets with Specific Faces
F1Pattern Block Play E4Tangram Areas E5Pattern Block Areas
Funding provided by Social Sciences and Humanities Research Council (SSHRC)