Central and inscribed angles on the same arc Student activity Play

Centroid of a triangle Animation Play

Characteristics of cartilaginous fish Slideshow Play

Circle and line in a coordinate system Simulation Play

Circle and line in a coordinate system Student activity Play

Common points of the graphs of two functions Animation Play

Common tangents Student activity Play

Completing the proportion Whiteboard exercise Play

Completing the proportion Student activity Play

Conclusions Student activity Play

Conclusions Whiteboard exercise Play

Congruency of triangles Whiteboard exercise Play

Congruency of triangles and other figures Student activity Play

Congruent triangles Animation Play

Constructing a line parallel to a given line Simulation Play

Constructing a perpendicular to a given line Simulation Play

Constructing a perpendicular to line at a point off the line Simulation Play

Constructing the image of a triangle in a line Animation Play

Construction of a line bisector Animation Play

Construction of a parallel line Animation Play

Construction of a parallelogram Simulation Play

Construction of a perpendicular bisector Animation Play

Construction of a perpendicular line Simulation Play

Construction of a regular pentagon Animation Play

Construction of a right-angled triangle Simulation Play