Rate of change on the straight line Student activity Play

Rate of radioactive decay Animation Play

Ratio of two quantities of different kinds Student activity Play

Ratio of two quantities of different kinds Whiteboard exercise Play

Reading the graph Student activity Play

Rectilinear motion and circular motion Animation Play

Relationship between air resistance and speed Student activity Play

Relationship between air resistance and speed Whiteboard exercise Play

Relationship between distance and time Animation Play

Relationship between Kp and Kc Student activity Play

Relationship between location and time Whiteboard exercise Play

Relationship between location and time Student activity Play

Roemer's proof Student activity Play

Roemer's proof Whiteboard exercise Play

Roots of a polynomial Student activity Play

Rounding a number Animation Play

Salt hydrolysis Whiteboard exercise Play

Salt hydrolysis Student activity Play

Salts of weak acids and strong bases Student activity Play

Salts of weak acids and strong bases Whiteboard exercise Play

Salts of weak acids and weak bases Student activity Play

Salts of weak acids and weak bases Animation Play

Satellite navigation systems Student activity Play

Second-order reaction Animation Play

Second-order reactions Whiteboard exercise Play