In Mrs. Sheinfeld's 6th grade math class, students worked on reviewing decimal place value through an activity focused on collaboration, problem solving, and communication. Each student, in each cluster, received one place value digit (in various forms- standard form, word form, and extended form). The students were then given one instruction only- that they could not show their card to any other student. Quickly working together to communicate the data on their cards to one another through writing and orally, the group members discovered that they each held one piece of a larger and more complex number and worked together to discover it.