# Number

Showing 97–112 of 131 results

# Number

##### Number
Interactive Lessons

## Converting Between Imperial and Metric Units

Students learn how to convert between imperial and metric units using standard conversion factors.  As learning ...
##### Number
Interactive Lessons

## Converting Between Imperial Units

Students learn how to convert between imperial measures of length, weight and capacity using standard conversion...
##### Number
Interactive Lessons

## Converting Between Metric Units

Students learn how to convert between metric measures of length, weight and capacity using standard conversion f...
##### Number
Interactive Lessons

## Conversion Graphs

Students learn how to convert between non-standard units including currencies and imperial lengths using graphic...
##### Number
Interactive Lessons

## Time Conversions

Students learn how to convert between analogue and digital time using the 12 and 24 hour clock.  As learning pro...
##### Number
Interactive Lessons

## Using Calculator Efficiently

The start of the lesson reviews basic calculator operation using the order of operations and place value to calc...
##### Number
Interactive Lessons

## Calculations with Surds

By simplifying surds using square factors students learn how to evaluate and simplify expressions, such as, expa...
##### Number
Interactive Lessons

## Simplifying Surds

Students learn about what a surd is and how it can be simplified using square factors.  To consolidate and exten...
##### Number
Interactive Lessons

## Writing Numbers in Standard Index Form

Using place value students learn how to convert ordinary numbers to standard index form.  As learning progresses...
##### Number
Interactive Lessons

## Square and Cube Numbers

Students are introduced to the concept of square and cube numbers through the use of diagrams of volumes and are...
##### Number
Interactive Lessons

## Calculations With Standard Index Form

To calculate with numbers written in standard form students are taught how to apply the rules of indices to a ba...
##### Number
Interactive Lessons

## Rules of Indices

Using the multiplication and division rules students learn how to evaluate expressions in index notation.  As le...
##### Number
Interactive Lessons

## Rationalising Denominators

The start of the lesson reviews simplifying products and quotients involving surds since this is prerequisite kn...
##### Number
Interactive Lessons

## Prime Factor Decomposition

Students learn how to break down a number using its prime factors and write the result using index notation.  As...
##### Number
Interactive Lessons

## Indices with Negative Powers

Students learn how to calculate the reciprocal of a number and evaluate indices with negative powers.  As learni...
##### Number
Interactive Lessons

## Highest Common Factor and Lowest Common Multiple

Using prime factors and Venn Diagrams students are able to calculate the highest common factor and lowest common...

### 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 […]