An anchor chart on place value will be shown to students for explaining that Just like words have synonyms, numbers can be expressed in different forms. Through this chart, they will be explained that expanded form is an alternate way of writing numbers. For example, 156 in expanded from is 100 + 50 + 6 (Anchor Chart attached).
For more understanding with examples, teacher will show a video and explain expanded form by using LEGO BRICKS (helps in reinforcing place value concept too). Lego bricks use for expanded form in which each block presents a place : ones (unit), tens, hundreds (Video attached).
??For strengthening students knowledge, teacher will show a PowerPoint Presentation on expanded form. Then an exercise based on expanded form will be given to students for practice.