Aliphatic amines: properties as bases Student activity Play

Alkanes Whiteboard presentation Play

Alkanes Class activity Play

Alternate angles Whiteboard exercise Play

Ammonia Animation Play

Ammonia and nitric acid Whiteboard presentation Play

Ammonia and nitric acid Class activity Play

Ammonium cation Animation Play

Angle sum of a triangle – exercises Student activity Play

Angles and parallel lines Whiteboard exercise Play

Angles and sides of triangles Student activity Play

Angles around a point Whiteboard exercise Play

Angles around a point Student activity Play

Angles in a triangle Whiteboard exercise Play

Angles in a triangle – part I Student activity Play

Angles in a triangle – part II Student activity Play

Angles in simple polygons Whiteboard presentation Play

Angles in simple polygons Class activity Play

Angles of polygons Student activity Play

Angles of quadrilaterals Student activity Play

Angles on a line Whiteboard exercise Play

Angles on a line Student activity Play

Angles on a straight line and angles round a point Student activity Play

Angular measure Animation Play

Application of chlorine Slideshow Play