This is a worksheet I created to teach my child the concept of place values. She began to understand that even though we see 7 in the tens place, we actually have 7 backpacks full of ten blocks, or 70 blocks total. I hope this helps out other struggling students.
This can be used for regrouping, as well. Simply "unpack" a backpack into the ones place and they can use the concept across the board. I will create worksheets later to add to this concept.