In Antarctica and in the desert Whiteboard exercise Play

Interesting fact Animation Play

Interesting facts about the calendar Student activity Play

Interesting facts about the calendar Whiteboard exercise Play

Ionic and atomic radii Student activity Play

Irrational numbers – addition and subtraction Whiteboard exercise Play

Isomerism in the haloalkanes Student activity Play

Lenna's shopping Whiteboard exercise Play

Long addition Animation Play

Long addition and subtraction Animation Play

Lorry Simulation Play

Markovnikov’s rule Student activity Play

Mass spectra of diatomic elements Animation Play

Mass spectra of the elements Student activity Play

Mean bond enthalpy Student activity Play

Mechanism of nucleophilic addition Whiteboard exercise Play

Mechanism of nucleophilic addition Student activity Play

Mechanism of the addition reaction Animation Play

Mental addition Animation Play

Mental addition Whiteboard exercise Play

Mental addition and mental subtraction Student activity Play

Mental calculations involving multiplication Whiteboard exercise Play

Mental calculations involving powers Whiteboard exercise Play

Mental methods Whiteboard presentation Play

Mental methods Class activity Play