This is an introduction to rounding to significant figures.

The lesson includes whole numbers and decimals to round to 1 2 or 3 significant figures, and a small game to play with the class at the end, which plays from within the same page.

A whiteboard style pen has been built into the lesson so you can draw on the page as you go and use the answers or explanations or model your own way.

There is no need to save it as a true online folder site, just play it locally from your downloads folders and it will open in a browser.