Why Lesson Planet?
In this addition activity, students play a game using positive and negative numbers. Two players complete a 3 x 4 array. Player A writes positive numbers 1 to 6 in any box, player B writes negative numbers -1 to 6 in any box. Both players add the rows and columns. Player A gets a point for each positive sum, player B for each negative sum. Students complete 3 questions where they reflect on strategies.