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These are the Transum resources related to the statement: "Pupils should be taught to apply and interpret limits of accuracy when rounding or truncating, {including upper and lower bounds}".

Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

- Rough Answers An exercise on rounding values in a calculation to find an approximate estimate of the answer.
- Rounding DP A self marking exercise requiring students to round numbers to a given number of decimal places.
- Rounding SF A self marking exercise requiring students to round numbers to a given number of significant figures.
- Rounding Snap If the last card put down equals the previous card to the nearest whole number then all players race to shout SNAP!
- Rounding Ten Round the numbers to the nearest whole number or the given power of ten.
- Upper and Lower Bounds Determine the upper and lower bounds when rounding or truncating quantities used in calculations.

Here are some exam-style questions on this statement:

- "
*A number, \(n\), when rounded to two decimal places is 7.32*" ... more - "
*The Glacier Ski Resort has this sign showing the safety limit for each cable car:*" ... more - "
*Ayden is marking out the pitch for a ball game in a large field.*" ... more - "
*The height of a tree is 9 metres to the nearest metre.*" ... more - "
*Minerva's Revenge, the longest rollercoaster in the Funville Theme Park, takes 95 seconds (to the nearest 5 seconds) to complete one circuit of the 2280 metre long track.*" ... more

Click on a topic below for suggested lesson starters, resources and activities from Transum.

How do you teach this topic? Do you have any tips or suggestions for other teachers? It is always useful to receive feedback and helps make these free resources even more useful for Maths teachers anywhere in the world. Click here to enter your comments.