Accuracy

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Accuracy

Making Approximations using Rounding

Students learn how make approximations by rounding numbers to one significant figure.  As learning progresses mo...

Rounding Numbers to a Significant Figure

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

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...

Limits of Accuracy

Students learn how to calculate the limits of accuracy of rounded numbers.  As learning progresses they are chal...

Estimating Solutions by Rounding

Students learn how to estimate solutions by rounding numbers to a significant figure.  As learning progresses st...

Calculations with Limits of Accuracy

Students learn how to find the limits of accuracy in calculations using the upper and lower bounds of different ...

Mr Mathematics Blog

Mathematics OFSTED Inspection – The Deep Dive

Earlier this week, my school took part in a trial OFSTED inspection as part of getting ready for the new inspection framework in September 2019. This involved three Lead Inspectors visiting our school over the course of two days. The first day involved a 'deep dive' by each of the Lead Inspectors into Mathematics, English […]

How to Solve Quadratics by Factorising

The method of how to solve quadratics by factorising is now part of the foundational knowledge students aiming for higher exam grades are expected to have.   Here is an example of such a question. Solve x2 + 7x – 18 = 0 In my experience of teaching and marking exam papers students often struggle with […]

How Write 3 Part Ratios

When learning how to write 3-part ratios students need to understand how ratios can be made equivalent. The start of the lesson reminds students by asking which of six ratios is the odd one out.  This is presented to the class as they come into the lesson.    Writing Equivalent Ratios  A few students immediately go […]