Rounding

When working on the topic of Rounding, I noticed that the pupils were not using the correct mathematical language so I have to repeatedly model the correct Mathematics language in the classroom.

We no longer use the term "round down". But instead we say "Round to" and "Round Up".

A teacher in our school, Mrs Tong,  shared the following resource with the level teachers. Although it may look simple, we found that the colour coding of the numbers really helped the pupils work out if they need to round to /round up the numbers.

A common error that the pupils is facing difficulty in is to decide what numbers they are to put at the beginning and ends of their number lines.

To make the thinking more visible, I taught them is to say to themselves ...... :

1) When I am asked to round to the nearest 10 , I need to COUNT in tens to put down the two numbers at the ends of the number line.

2) When I am asked to round to the nearest 100, I count in hundreds 

3) When I am asked to round to the nearest 1 000, I count in thousands