Max Maths, Year 5, Try it, Ratio

In the 'Try it' section of Max Maths for Year 5, students are introduced to practical applications of ratios through word problems involving recipes and proportions. The first problem deals with a cookie recipe that calls for 400 grams of flour to 200 grams of sugar to make 12 cookies. Students are asked to calculate the amount of sugar needed for 24 cookies. Since 24 is twice the number of the original 12 cookies, the amount of sugar required is also doubled, resulting in the need for more sugar. The next question asks how much flour would be necessary to make 6 cookies. As 6 is half of 12, the amount of flour needed is halved from the original recipe. Finally, students must determine how many cookies can be made with 1200 grams of flour and 600 grams of sugar. This is three times the original amounts, so it will yield three times as many cookies.

The 'Let's Practise' section continues to challenge students with more ratio problems. One problem involves a jelly recipe that requires 2 cups of water for every packet of jelly. Students must find out how many cups are needed for 2 packets. Another scenario presents a trip where 1 minibus is needed for every 12 people. The task is to calculate the number of minibuses required for 84 people. Lastly, students must work out how many eggs are needed for a café expecting 51 visitors, given that 3 eggs are required for every 2 visitors. These exercises aim to reinforce the concept of ratios and how they are used to solve problems in everyday situations. Students are directed to workbook pages 153 to 154 for additional practice.