Addition, Subtraction, Multiplication and Division - Division using Factors - Presentation

In a mathematics lesson focused on division using factors, students are encouraged to apply their understanding of factor pairs to simplify division calculations. The lesson begins with a discussion on the concepts of factors and factor pairs, and whether all factors have corresponding pairs. Through a series of fluency and reasoning teaching slides, students are presented with division problems that they are encouraged to solve by breaking down the divisor into its factor pairs. For example, dividing 780 by 20 can be approached by first dividing by 10 and then by 2, utilising the factor pair of 20. This method is further practised with different numbers to reinforce the concept and to help students identify patterns in division calculations.

Subsequent activities guide students through various division problems, illustrating how using factor pairs can lead to the same quotient as traditional division methods. They calculate divisions such as 480 ÷ 60 by breaking the divisor into its factor pairs and performing sequential division. The lesson also includes practical applications, such as determining how many boxes a farmer can fill with a given number of eggs, where each box holds a dozen eggs. Students are encouraged to check their work using different methods and to discuss the effectiveness of using factor pairs in division. The lesson aims to deepen students' understanding of division and factors, and to equip them with strategies to solve division problems more efficiently.