all Numbers and counting articles

Prime numbers
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.
Square 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 negative numbers?
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?
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...
Multiples and factors
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...
Rounding numbers
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 expanded notation?
What is expanded notation?
We explain what expanded notation means, how it is taught in primary school and how it can help children with addition and multiplication...
Mathematical investigations
What are mathematical investigations?
We explain what types of mathematical investigations children will carry out in primary school and give examples of complex investigations they might...
What is a calculator used for in primary school maths?
What is a calculator used for in primary school maths?
We explain how children might be taught to use a calculator for primary school maths (though the 2014 curriculum suggests their use should be minimal...
Two-step and multi-step word problems
What are two-step and multi-step problems?
We explain what two-step and multi-step problems are and give examples of typical problems a child might be asked to solve in primary school (and how...

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