Multiplication and Division (1) - Multiply by 10, 100 and 1,000 - Presentation

The lesson on multiplication and division delves into the concept of multiplying numbers by 10, 100, and 1,000. Students are encouraged to solidify their understanding of the process by engaging in various activities that illustrate the effect of these multiplications on numbers. The lesson begins with a discussion prompt that asks students to consider what happens to a number when it is multiplied by 10 or 100 and to predict the outcome of multiplying by 1,000. These concepts are explored through practical exercises, such as placing counters on a place value grid to represent a number like 234, and then visually demonstrating the shift of digits to the left when the number is multiplied by 10, resulting in 2,340.

Further activities challenge students to apply their knowledge to more complex tasks. They are asked to complete a series of multiplication questions, reinforcing the concept that multiplying by 10, 100, or 1,000 moves the digits in a number to the left by one, two, or three places, respectively. For instance, multiplying 327 by 100 gives 32,700, and multiplying 1,000 by 432 results in 432,000. To deepen their understanding, students also compare numbers using symbols like <, >, or =, and solve real-world problems, such as determining how much more money one person has compared to another when their amounts are related by these multiplication factors. The lesson concludes with reasoning tasks and a discussion to consolidate the learning outcomes, ensuring students can confidently multiply by 10, 100, and 1,000 and understand the place value implications of these operations.