Mass and capacity - Add and subtract mass - Starter

In a mathematics lesson aimed at Year 3 pupils during the Summer Term, students tackle the topic of mass and capacity, specifically focusing on adding and subtracting mass. The session kicks off with a 'Fluent in Four' revision exercise, which presents various problems for the children to solve, including arithmetic questions involving tens and straightforward addition. For example, children are tasked with calculating '3 less than 39 tens' and '6 more than 47 tens', as well as solving sums such as 463 + 287. The practical application of these skills is then explored through comparing masses, where students use the symbols <, >, or = to determine the relationship between different weights presented in kilograms and grams.

The lesson continues with an interactive activity where students are required to fill in a table that helps them understand the concept of 100 less and 100 more than a given number. This exercise strengthens their grasp of numerical place value and the base-10 number system. Additionally, the children are shown a series of shapes and asked to identify which two have been divided into thirds, reinforcing their understanding of fractions. The lesson also includes a visual representation of weights on a scale, ranging from 0 to 7 kilograms, marked in 100-gram increments, which aids in visual learning and comparison of mass. Overall, the exercises are designed to be engaging and informative, enhancing the pupils' mathematical skills in a practical context.