<p>A lesson for KS3 (but I have used with KS4 classes) on rounding and estimating.</p> <p>This starts off with a recap of rounding and delves into the nitty gritty of rounding to decimal places and significant figures.</p> <p>There are some examples to work through and then some AFL questions too.</p> <p>After this, there are questions on estimating answers to calculations.</p>