# Number

Showing 113–128 of 131 results

# Number

## Indices with Fractional Powers

Students use reciprocals to evaluate indices with fractional and decimal powers.  Using square and cube numbers ...

## Adding Fractions with Different Denominators

To add and subtract fractions with different denominators students are taught to use equivalent fractions to fin...

## Recurring Decimals

Students learn the difference between terminating and recurring decimals and how to convert a recurring decimal ...

## Multiplying Fractions

Students learn how to multiply fractions using visual and numerical methods.  As learning progresses 'cross sim...

## Mixed Numbers and Top Heavy Fractions

Students learn how to convert between mixed numbers and top heavy fractions using visual and numerical methods. ...
Interactive Lessons
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## Calculating a Fraction of an Amount

To calculate a fraction of an amount students begin to understand how the term 'of' in mathematics relates to ...

## Equivalent Fractions

To visualize equivalent fractions students are first given illustrations in the form of a fraction wall and spid...

## Dividing Fractions and Mixed Numbers

Students learn how to divide with fractions and mixed numbers using numerical and calculator methods.  As learni...

## Long Division

Students learn how to perform long division using equivalent and simplified fractions.  As learning progresses t...

## Long Multiplication

Students learn how to perform long multiplication using ‘The Chinese Method’.  To progress students begin to app...

## Ordering Decimal Numbers

Students learn how to arrange decimal numbers in ascending order by using a number line.  As learning progresses...

## Multiplying and Dividing by Tens

To multiply and divide by powers of ten students are taught to use the place value table and shift the digits to...

## Volume of a Cone

Students learn how to calculate the volume of a cone using the base area and perpendicular height.  As learning ...

## Rounding to a Decimal Place

Students learn how to round a number to a given decimal place using place value.  As learning progresses they mo...

## Rounding to Significant Figures

Students learn how to round a number to a significant figure using number lines and place value.  As learning pr...

## Rounding to the Nearest Power of Ten

Students learn how to round any number to the nearest 10, 100 and 1000. As learning progresses students begin to...

### Mr Mathematics Blog

#### Calculating the Volume of a Pyramid

When calculating the volume of a pyramid we can substitute the values of the length, width and perpendicular height into the formula V = 1/3 lwh.  In my experience this is often provided for the students with little explanation as to why a volume of a pyramid is exactly one third the volume of a […]

#### Solving 3D Problems using Trigonometry

When teaching solving 3D problems using trigonometry we begin the lesson with a recap of Pythagoras’ Theorem and the three trigonometric ratios.  We do this by matching the ratio and equations to the respective right-angled triangle.   Students are encouraged to work in pairs and to show the diagrams as part of the working out on […]

#### Rounding to a significant figure

When I teach rounding to a significant figure, I ask the class to discuss in pairs or small groups a definition for the word significant.  It is a word that all the students have heard before but not all are able to define. After 2 or 3 minutes of conversation I ask the students to […]