Decimal numbers

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Decimal numbers

Addition with Decimal Numbers

Students learn how to perform addition with decimal numbers using place value and the column method.  Number pyr...

Division with Decimal Numbers

Students learn how to perform division with decimal numbers using the box method.  Less able students use a time...

Multiplication Problems

Students are taught how to solve a range of real life multiplication problems using the grid and column method. ...

Multiplication with Decimal Numbers

Students learn how to perform addition with decimal numbers using the column method.  More able students are cha...

Multiplying Decimals using the Grid Method

Students learn about multiplying decimals using the grid method.  Throughout the lesson students are encouraged ...

Rounding Decimal Numbers

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

Subtraction with Decimal Numbers

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

Adding and Subtracting with Decimals

To add and subtract with decimal numbers students learn how to use the place value table to align the digits in ...

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...

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 […]