Students will be paired with a partner, each partner will be dealt eight Numeral Cards, and the students will be able to use any six cards to make two three- digit numbers. The object is to try and make numbers that, when added, will give you a total close to 1000. The students will then write the numbers with their total on a Close to 1000 Score Sheet. The score is the difference between the total and 1000. They will put their used cards in a discard pile and draw six new cards for the next round. After five rounds, students will total their scores, and the lowest score wins!
As the pairs set off for Work Period, the teachers strategically, based on their data, begin to confer with groups of students. The teachers are observing to see which students are developing efficient strategies to add and subtract numbers in the hundreds, to see who is using mental math, to see who is strategically playing the game, and to see who is struggling with misconceptions. They facilitate by offer suggestions, pointing out more efficient strategies, or talking with students on the most strategic way to use their wild cards. In their dialogue with students, they always expect students to explain their thinking articulately. Each teacher, clip board in hand, takes notes on observations and student mastery. As the teachers facilitate they are also looking for student's work that will be most appropriate to share in Closing Session to move student thinking forward. After 30 minutes, the class comes back together as a whole group to summarize and extend their learning.