AIDS – an example of a viral disease Class activity Play

Algebraic division Class activity Play

Algebraic division Whiteboard presentation Play

Algorithm of polynomial division Whiteboard exercise Play

Algorithm of polynomial division Student activity Play

Alternation of generations in bryophytes Slideshow Play

An egg cell Whiteboard exercise Play

An example of a proof Student activity Play

An interesting number Student activity Play

Anaerobic respiration Slideshow Play

Angiosperms - ovule and pollen grain Whiteboard exercise Play

Angiosperms – seed plants with sporophyte and gametophyte generations Student activity Play

Animal cell structure Whiteboard exercise Play

Animal cells Student activity Play

Animal cells under a microscope Slideshow Play

Antagonistic actions of the autonomic nervous system Student activity Play

Antigen-presenting cell Animation Play

Apical and lateral meristems Student activity Play

Apoptosis Animation Play

Application of electric motors Student activity Play

Application of radioactive isotopes Student activity Play

Applications of voltaic cells Whiteboard exercise Play

Applying the properties of division Whiteboard exercise Play

Arranging metals according to their increasing reducing power Simulation Play

Arranging metals according to their increasing reducing power Student activity Play