Place value - Count forwards and backwards within 20 - Presentation

This educational presentation is designed to help students grasp the concept of place value by counting forwards and backwards within the range of 20. The lesson begins by asking students to provide examples of counting in both directions, up to the number 20. This foundational exercise sets the stage for a series of engaging activities aimed at reinforcing their understanding of numerical order and the significance of each digit within a number. The lesson is structured to encourage discussion and interaction, prompting students to think about what comes after a given number, such as 10, and to observe patterns in the sequence of numbers, particularly focusing on the 'teen' suffix and its implications on a number's value.

Subsequent activities involve matching visual representations, such as ten frames, to their corresponding numerals and writing numbers both in digits and words. These exercises are crafted to enhance students' fluency in recognising and articulating numbers, as well as their ability to comprehend the place value system. Further tasks include filling in missing numbers within sequences, which helps to solidify the concept of counting in order. The presentation also incorporates reasoning challenges, where students must identify anomalies in sequences and justify their thinking, thereby developing their analytical skills. Throughout the lesson, students are encouraged to articulate their observations and engage in discussions about number patterns and place value, fostering a deeper understanding of the numerical world around them.