Mass and capacity - Compare mass 2 - Starter

In a Year 3 mathematics lesson, students are given a variety of tasks that test their understanding of mass and capacity, as well as their arithmetic skills. One activity requires them to solve a numerical problem by calculating '13 more than seven hundreds minus 7 tens, five hundreds and 8 ones', which challenges their ability to perform addition and subtraction with large numbers. Another exercise involves a subtraction problem where students must find the difference between 713 and 578, and then subtract 243 from the result. These tasks are designed to enhance fluency in arithmetic through practical application.

Additionally, the lesson includes a real-world application of measuring mass, where students must determine the weight of a melon in kilograms and grams, using a scale that ranges from 0 to 7 kilograms. To further develop their understanding of division, students are asked to complete a part-whole model for the equation '24 ÷ 2', breaking down the number 24 into tens and ones before sharing them equally. The lesson also incorporates a practical problem involving height measurement: students calculate the combined height of two towers built by Peter and Bryan, with one being 19 cm tall and the other 37 cm. By stacking Peter's tower on top of Bryan's, students find the total height to be 56 cm, practicing addition with measurements.