Place value - Tens and ones - Presentation

The 'Tens and Ones' presentation is an educational resource designed to help Year 2 students understand the concept of place value. The lesson focuses on the identification and manipulation of tens and ones within numbers. Initially, the class discusses the basic principles of tens and ones, setting the stage for more in-depth activities. Students are encouraged to engage with part-whole models, which are visual tools that break down numbers into their constituent tens and ones, helping to solidify their understanding of how numbers are constructed.

Subsequent activities involve completing part-whole models with given numbers, such as 470, 27, 74, and 41, where students determine the missing parts. They are prompted to consider which part of the model is known and how to use the whole number and the known part to find the missing part. Further exercises challenge students to partition numbers using concrete materials or drawings, reinforcing the concept of tens and ones. For example, the number 58 can be broken down into 5 tens and 8 ones. The presentation also includes reasoning tasks where students evaluate statements about part-whole models and practice completing extended part-whole models, such as those for the numbers 76 and 51. Independent work activities encourage students to draw their own part-whole models and partition numbers in various ways, enhancing their problem-solving skills and understanding of place value.