Antagonistic muscle pairs Student activity Play

Antagonistic muscle pairs Animation Play

Conjugate acid–base pairs Animation Play

Equivalent fractions Student activity Play

How many? A more difficult problem Student activity Play

Lone electron pairs affect the shape of the molecule Whiteboard exercise Play

Lone electron pairs affect the shape of the molecule Whiteboard exercise Play

Lone electron pairs affect the shape of the molecule (1) Student activity Play

Lone electron pairs affect the shape of the molecule (2) Student activity Play

Molecules with five electron pairs Chart Play

Molecules with five electron pairs (1) Student activity Play

Molecules with five electron pairs (2) Student activity Play

Molecules with seven electron pairs Animation Play

Molecules with six electron pairs Chart Play

Molecules with six electron pairs Student activity Play

Molecules with six electron pairs Whiteboard exercise Play

Pairs Student activity Play

Pairs Whiteboard exercise Play

Pairs of equivalent fractions Whiteboard exercise Play

Pairs of expressions that represent the same numbers Simulation Play

Pairs of forces and the equilibrium of forces Student activity Play

Pairs of forces and the equilibrium of forces Whiteboard exercise Play

Pairs of isomers Whiteboard exercise Play

Pairs of opposite vectors Whiteboard exercise Play

Playing tennis Whiteboard exercise Play