solve problems that require finding a familiar fraction, decimal or percentage of a quantity, including percentage discounts, choosing efficient calculation strategies and using digital tools where appropriate

How Bloomi helps with this

This is a readiness-year topic that builds towards the next NAPLAN year. Bloomi practises it as curriculum mastery, never test drilling.

What this looks like in the classroom

• explaining how \(\frac13\) of a quantity can be achieved by dividing by \(3\), and how knowledge of \(\frac13\) of a quantity can be used to find \(\frac23\) or \(\frac43\) of the same quantity using situations involving money, length, duration, mass or capacity
• investigating percentage discounts of \(15\)%, \(30\)% and \(45\)% in an online toy sale, using their equivalent decimal representations of \(0.15, 0.3\) and \(0.45\) to calculate the amount of discount on sale items, with and without digital tools
• linking percentages to their decimal equivalent of tenths and hundredths and using these to determine percentage discounts; for example, finding \(30\)% discount by using its equivalence to \(0.3\), dividing by \(10\) and multiplying the result by \(3\) to give \(30\)%