Multiplication and division - Multiply two digits by one digit activity - Presentation

In the fourth lesson of a series on multiplication and division, students are introduced to the concept of multiplying two-digit numbers by one-digit numbers. The lesson begins with a discussion prompt, encouraging students to think about the types of calculations they will be performing. They are reminded that multiplication is essentially repeated addition, and the lesson uses practical equipment to demonstrate this concept. For example, to multiply 2 by 24, students are shown how to create the number 24 twice using their equipment, reinforcing the idea of doubling a number.

The lesson continues with an activity that breaks down the number 24 into its tens and ones (20 and 4), and then shows how to multiply each part by 2 before adding the results together to get the final answer (40 + 8 = 48). Similarly, students work through the process of multiplying 31 by 3, starting by representing 31 with tens and ones, then repeating this three times to find the answer (90 + 3 = 93). The lesson includes a series of multiplication problems for students to solve, both independently and with the use of equipment if necessary. Students are also challenged to arrange digit cards to form calculations, aiming to find the largest and smallest totals possible, as well as the number of different totals they can create. The lesson concludes with independent work where students are tasked with solving calculations and determining whether statements are true or false, all while reinforcing their understanding of multiplying two digits by one digit.