What is a pie chart?

We explain what a pie chart is, how it is used to help us understand data and how children are taught to interpret pie charts.

What is a prime number?

We explain what prime numbers are and give examples of the types of questions KS2 children might be asked to test their knowledge of prime numbers.

What are square numbers?

We explain what square numbers are and how children are taught to know square numbers plus the corresponding squares of multiples of 10. We also...

What are improper fractions and mixed numbers?

We explain what improper fractions and mixed numbers are and how the relationship between them can be taught to primary-school children.

What is long multiplication?

We explain what the long multiplication method is and review how multiplication skills are built up through each year of primary school.

What is the grid method?

We explain what the grid method is, how it is taught in primary-school maths and how it is used to multiply a two-digit number by a one-, two- or...

What are negative numbers?

We explain what negative numbers are and how children can be taught the concept using a number line, as well as looking at the types of questions...

What are mode, mean, median and range?

We explain the meaning of the terms mode, mean, median and range, with examples of how to find each of these from a set of numbers, as well as...

What is rotation of shapes?

We explain what the term rotation means in geometry, how primary-school children are taught to rotate shapes clockwise or anticlockwise or about the...

What is translation of shapes?

We explain what the term translation means in primary-school geometry and how children are taught to translate a shape on squared paper and to...

What are equivalent fractions and simplifying fractions?

We explain what equivalent fractions are, how the concept of equivalence is introduced in primary school maths and how knowledge of equivalent...

What is area?

We explain what the term area means and how children are taught to calculate the area of a shape.

What is the perimeter?

We explain what the perimeter is and how teachers explain the concept to children in KS2, as well as showing the types of perimeter word problems...

What are multiples and factors?

We explain what multiples and factors are and how children are taught to recognise multiples from Year 1 and factors from Year 5, with examples of...

What are standard and non-standard units?

We explain what standard and non-standard units are and how non-standard units can help children understand the concept of weight before they master...

What are unit fractions?

We explain what unit fractions are and why children need to understand the concept of unit fractions before moving onto more advanced fractions...

What is symmetry?

We explain what symmetry is and how primary-school children are taught to find the line of symmetry and draw lines of symmetry on different shapes.

What are tessellating shapes?

We explain what tessellating shapes are and why tessellation may be taught in primary school as part of learning about 2D shapes.

What is an estimate?

We explain how children are taught to make estimates to check whether their answers are correct and how this skill is applied to more difficult...

What are probability / chance / likelihood?

We explain what probability / chance / likelihood means, how children are taught about probability from Year 5 and the kinds of mathematical problems...

What is proportion?

We explain what proportion is and how children are taught about proportion from Year 4, giving examples of the kinds of problems involving proportion...

What is a Carroll diagram?

We explain what a Carroll diagram is and how primary-school children are taught to use a Carroll diagram to sort data, such as a group of objects or...

What is a tally chart?

We explain what a tally chart is and how children are taught to use a tally chart to collect data and interpret data on tally charts.

What is a line graph?

We explain what a line graph is and how children are taught to construct line graphs and answer questions on a line graph.

What is a bar chart?

We explain what a bar chart is and how children are taught to interpret a bar chart, produce their own bar charts on grid paper and on a computer,...

What are coordinates?

We explain what coordinates are and how children are taught to read and plot coordinates on a grid.

100 of the best educational toys: KS2

Your child will be having so much fun playing these games they won't even realise they're practising their times tables, improving their...

100 of the best educational toys: stocking fillers

Don't forget the stockings! These little toys and games are the perfect size to slip in, yet still offer plenty of educational opportunity....

What is rounding numbers?

We explain what the term 'rounding numbers' means and how children are taught to go from rounding two-digit numbers in Year 2 to rounding...

What is ratio?

We explain what ratio is and how children in KS2 are taught to solve problems involving ratio.