Number

Showing 49–64 of 131 results

Number

Rounding Decimal Numbers

Students learn about accuracy when rounding decimal numbers.  Learning progresses from rounding to one decimal p...

Rounding Numbers to a Significant Figure

Students are introduced to rounding numbers to a significant figure.  Learning progresses from rounding whole nu...

Scale Drawings

Students learn how to draw diagrams to a scale using ratio notation.  As learning progresses they learn how to c...

Sharing in a Given Ratio

Students learn how to divide a quantity into two or more parts when given a ratio.  As learning progresses stude...

Simplifying numbers written in index form

Students learn how to use the multiplication and division rules to simplify numbers written in index form.  As l...

Square Numbers and Square Roots

Students learn how to calculate square numbers and square roots.  They are taught to use visualisation, written ...

Subtracting Fractions using a Fraction Wall

Students learn how to subtract fractions with using equivalent fraction diagrams.  As learning progresses more a...

Subtraction with Decimal Numbers

How to use the column method to perform a subtraction with decimal numbers.  More able students add and subtract...

Subtraction with Negative Numbers

Students learn how to subtract with positive and negative numbers on a number line and using written methods.  M...

Using Scientific Calculators

Students practise using scientific calculators to solve problems involving brackets, powers and the order of ope...

Working with Fractions in Key Stage 3 eBook

This eBook is packed with problems involving fractions and mixed numbers for all students in key stage 3. It con...
eBook £4.95

Writing Fractions as Percentages

Students learn how to convert between fractions and percentages using the place value table, factors of 100 equi...

Writing Numbers using Words and Digits

Students learn about writing numbers using words and digits through the place value.  Less able students have ac...

Writing Ratios in their Simplest Form

Key stage 3 lesson where students learn about writing ratios in their simplest form using the highest common fac...

Writing small numbers in Standard Form

Students learn how to convert between ordinary and standard form for numbers less than 1.  More able students ar...

Ratio and Proportion eBook

This eBook contains a selection of fully differentiated and printable worksheets ideal for independent study on ...
eBook £4.99

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 […]