Biological treatment of wastewater Student activity Play

Blood as a life-saving medicine Slideshow Play

Calculator methods Whiteboard presentation Play

Calculator methods Class activity Play

Comparing data Class activity Play

Comparing data Whiteboard presentation Play

Different questions about the same operation Whiteboard exercise Play

Different questions about the same operation. How much more? How much less? Student activity Play

Divisibility by 7 Student activity Play

Divisibility by 7 Whiteboard exercise Play

Finding arithmetic progression Whiteboard exercise Play

Finding the arithmetic mean of the terms Whiteboard exercise Play

Formula for the nth term of an arithmetic progression Student activity Play

Formula for the  nth term of an arithmetic progression Whiteboard exercise Play

How much/many has he got? Student activity Play

How much/many has he got? Whiteboard exercise Play

How to divide Student activity Play

How to lie with means Student activity Play

Irrational numbers Class activity Play

Irrational numbers Whiteboard presentation Play

Linear functions Class activity Play

Linear functions Whiteboard presentation Play

Measures of central tendency – the arithmetic mean Class activity Play

Measures of central tendency – the arithmetic mean Whiteboard presentation Play

Median and arithmetic mean Student activity Play