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

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

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

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

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

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

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

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

March 10, 2019

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 […]March 4, 2019

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 […]January 29, 2019

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 […]