The angles that are multiples of 45° Animation Play

The angles that are multiples of 60° Animation Play

The common points of the disc and the axes Animation Play

The common points of the disc and the coordinate axes Student activity Play

The difference of squares – common factor first Whiteboard exercise Play

The difference of squares – common factor first! Student activity Play

The highest common factor Student activity Play

The highest common factor Animation Play

The highest common factor Student activity Play

The highest common factor Whiteboard exercise Play

The highest common factor (hcf) Student activity Play

The highest common factor of numbers 33 and 44 Animation Play

The least common denominator Student activity Play

The least common denominator Animation Play

The least common denominator Whiteboard exercise Play

The least common denominator Student activity Play

The least common denominator Whiteboard exercise Play

The least common multiple Animation Play

The least common multiple Animation Play

The least common multiple (lcm) Student activity Play

The life cycle of a common polypody Whiteboard exercise Play

The most common alcohol – ethanol Whiteboard exercise Play

The most common alcohol – ethanol Student activity Play

The most common igneous rocks Slideshow Play

The most common rock-forming minerals Slideshow Play