Place value: power of ten and expanded form

Section role: supports the 'Mapping the Power of Ten' section while the teacher formalizes the discoveries from the bank vault challenge into the standard place value chart. Slides: (1) Title — 'Mapping the Power of Ten'; (2) The Place Value Chart — visual breakdown of columns from Ones up to Lakhs; (3) The x10 Jump Visualization — showing how moving one column to the left multiplies the value by 10, connecting back to the security expert challenge; (4) Expanded Form in Action — stretching numbers like 54,321 into 50,000 + 4,000 + 300 + 20 + 1; (5) The Power of Zero — addressing the misconception by showing zero as a vital placeholder that keeps other digits in their correct homes; (6) Closing slide — 'If I have 10 tens, what new place do I create?' — sets up the individual worksheet activity that follows.

Lara from Teachy