Place Value within 50 - Counting to 50 by making 10s - Presentation

The lesson on 'Counting to 50 by making 10s' is aimed at enhancing students' understanding of place value within 50. It encourages the use of visual aids such as 10s frames, counters, and straws to facilitate the recognition of patterns and the concept of grouping in tens. The lesson begins with a discussion on the equivalence of one ten to ten ones, prompting students to explore various representations of the number 10. Using different resources, like pencils, chips, and a bundle of straws, the children learn to visualise and count in tens effectively. The lesson is designed to be interactive, with activities that guide students to identify and correct mistakes, and to understand the importance of bundling items in tens for easier counting.

Further activities in the lesson include using 10s frames to count without having to count each counter individually, provided the frame is completely filled. This method is demonstrated by showing two filled 10s frames, each holding 10 counters, making a total of 20. Students are also encouraged to count in tens from a given number, such as counting from 20 to 30 using bundles of straws. The lesson then progresses to pattern recognition, where students observe a hundred square and spot that the last number in each row ends in zero, revealing multiples of 10 that can be used to count to 50 quickly. Reasoning tasks involve assessing whether characters like Malachi and Tia have correctly counted in tens, with explanations to support their conclusions. Independent work tasks challenge students to identify errors, bundle straws correctly, and complete a grid to 50, all while reinforcing their understanding of place value and counting in tens.