Applying the distance formula in 3-dimensional space Animation Play

Areas of rectangles Class activity Play

Areas of rectangles Whiteboard presentation Play

Arithmetic mean in our life Animation Play

Arithmetic mean – 'balancing point' of the data Whiteboard exercise Play

Arithmetic mean – 'balancing point' of the data Student activity Play

Arithmetic mean – the 'true' value of the data Whiteboard exercise Play

Arithmetic mean – the 'true' value of the data Student activity Play

Astronomical numbers Animation Play

Astronomical unit Animation Play

Atomic mass of an element Animation Play

Atomic mass of an element Student activity Play

Atomic radius Student activity Play

Average Animation Play

Average and instantaneous speed Student activity Play

Average and instantaneous speed Whiteboard exercise Play

Average concentration of CO in the atmosphere Slideshow Play

Average monthly temperatures Whiteboard exercise Play

Average of the Earth's density Animation Play

Average price Whiteboard exercise Play

Average result Whiteboard exercise Play

Average speed Animation Play

Average speed Student activity Play

Average speed Animation Play

Average speed Whiteboard exercise Play