Place Value within 20 - Count one more and one less - Presentation

In a structured and interactive presentation, students are invited to enhance their understanding of place value within the number range of 1 to 20, focusing on the concepts of 'one more' and 'one less'. The lesson begins with a discussion to clarify the meaning of 'more' and 'less', setting the stage for the activities that follow. Students are then presented with a series of numbers and are tasked with determining the number that is one more and one less than the given numbers. This activity not only reinforces their counting skills but also deepens their comprehension of numerical relationships and place value.

As the lesson unfolds, students engage in various activities designed to solidify their grasp of the topic. They are prompted to visually represent numbers and explore how adding one or subtracting one alters a number, particularly focusing on changes in the ones digit. Additionally, the presentation includes reasoning exercises where students apply their knowledge to real-life scenarios, such as determining ages based on sibling relationships. These activities encourage students to think critically and demonstrate their understanding in different ways, from drawing representations to solving place value puzzles. The lesson culminates with independent work, where students complete missing parts of questions, further cementing their learning of counting one more and one less within the context of place value.