Multiplication and division - Make arrays 2 - Presentation

In the presentation on multiplication and division, the concept of arrays is introduced to facilitate understanding of how to find totals. An array is described as a collection of objects or numbers arranged in rows and columns, which simplifies the counting process. Rows are horizontal lines of elements that go across, while columns are vertical lines that go down. The presentation includes images of arrays with stars and moons, asking students to identify the number of rows and columns in each. By organising elements in this structured manner, students can visually grasp the concept of multiplication as repeated addition, making it easier to calculate the total number of items in the array.

The lesson continues with various activities where students are tasked with completing sentences based on different arrays, such as counting apples, cherries, cubes, and bears. They must determine the number of items in each row or column and then calculate the total by adding the groups together. The presentation also includes a table completion exercise, where students describe arrays in terms of columns and rows, and then find the totals using both addition and multiplication. Additionally, the lesson addresses the importance of equal groups in arrays, and students are encouraged to check and correct arrays to ensure they are made of equal groups. The activities culminate in independent work where students complete missing information for arrays and agree or disagree with number sentences that describe the arrays, thereby reinforcing their understanding of the relationship between arrays, multiplication, and division.