Building Everyday Maths Confidence
Estimation is a vital mathematical skill that helps children develop number sense, make quick decisions, and build confidence in their problem-solving abilities. It’s not about getting the exact answer—it’s about making a reasonable guess based on what we know. In everyday life, we estimate all the time: how long a trip will take. how much groceries will cost, or how many chairs are needed for a party. To practise estimating we are running a -
Library Estimation Competition
Estimate the number of returned books on the library circulation desk.
Meet the first winner, Ashley
The correct number of books was 314 and Ashlee estimated 308 books.
Meet the second winner, Ruby
The correct number of books was 286 and Ruby estimated 314 books. Ruby used the total from the last competition to help her with her estimate for this fortnight and it worked!
Meet the third and final winner, Luxton
The correct number of books was 309 and Luxton estimated 300 books. Luxton's strategy to estimate his quantity, is to choose a number between two totals from the last competition was successful! Congratulations Luxton!
Our estimates improved each week, with entries getting closer to the target quantity and students discussing and employing a range of strategies.
© Brisbane Catholic Education, Our Lady of Dolours Catholic Primary School (2025)