4th Grade Standards: Round multi-digit whole number, Read whole numbers, Identify the digit in a specific place, Understand the VALUE of a number based on the place. I use these cards by having students create a number to the millions place or providing one to them. They then sit in groups of 3-4 with a Kagan fan and pick mat (or any structure you choose to use). These cards are face down and they use the cards to answer questions about their number to the millions place, coach each other,