estimate the quantity of objects in collections and make estimates when solving problems to determine the reasonableness of calculations

How Bloomi helps with this

This is a NAPLAN-year topic. Bloomi teaches it with a short explainer, guided practice, and NAPLAN-style questions — every one traceable to this exact code.

What this looks like in the classroom

• estimating how much space a grid paper representation of a large number such as \(20 200\) will take up on the wall and how much paper will be required
• estimating the number of people in a large gathering; for example, school assembly, using known numbers, such as how many students per class
• choosing which place value they would estimate to for different situations; for example, they would estimate to the nearest \(10\) when estimating how many dots on a ladybird or they would estimate to the nearest \(1000\) when estimating crowd sizes at a venue