Teaching students to count and understand place value requires students to connect a fair number of different concepts.
Do you know all the concepts involved to reach this understanding?
Can you revisit the concepts at different levels so students deepen their understanding?
If you struggle to answer these questions fully then you need the
Wilkie Way Teacher Handbook Numbers & The Number System written by Charlotte Wilkinson
and 2 of each of 16 games for teaching and practice (Dice & Counter Games Sets 1, 2, 4 & 5)