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This year marks my tenth year as a teacher of Maths. During that time, I've built up a bank of teaching resources and ideas which I want to share with others. Some can be incorporated into lessons and others act as discussion points.

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The majority of posts are focused around Maths, but there are some which look at pedagogy and CPD which can be used in other subjects/settings. Search for lesson resources using the tags at the side. Pedagogy has it's own section.

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Resources can be used in educational settings, including private tuition.

Standard Form Discussion

I've taught Standard Form to be when a number is written as \(n\times 10^x\) where \(1\leq n\lt 10\) and \(x\) is an integer, but on a few occasions I've been asked about numbers where I'm not sure. Consider this:


I've seen alternative definitions to allow for negatives. That is, \(n\times 10^x\) where \(1\leq |n|\lt 10\) but I haven't seen anything about the others.

I know they can be expressed in Standard Form, but I'm wondering if the coefficient (\(n\)) and power of 10 including the index have to be explicitly stated for it to be considered Standard Form.

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