Place Value within 20 - Tens and ones part whole model - Presentation

In the upcoming lessons 3 and 4, primary school students will delve into the concept of place value with a focus on tens and ones. Utilising ten frames and part-whole models, they will explore foundational mathematics by comparing the value of one ten to ten ones. Through interactive discussions and hands-on activities, children will be encouraged to articulate their understanding of the numerical structure within the number 20. The lessons include exercises where students use part-whole models to identify numbers with the 'teen' sound and to break down numbers into tens and ones, reinforcing their comprehension of how two-digit numbers are composed.

Students will engage in various activities that require them to fill in ten frames with counters, thereby visualising the number 14, for example, as one ten and four ones. They will also tackle reasoning challenges, such as correcting misconceptions in part-whole models, like identifying Tia's mistake when she confuses tens with ones. Independent work will further solidify their learning as they complete tens frames and part-whole models to represent numbers accurately. The lessons prompt critical thinking with questions about the significance of the 'teen' suffix, the value comparison between tens and ones, and the importance of understanding place value to simplify counting and number representation.