2nd Grade Mystery Number Games!

A MYSTERY NUMBER SKYPE is a Skype call where two classrooms connect with each other. Each classroom chooses a secret number in advance. The two classes then meet up over Skype with number boards and expo markers in hand. The classrooms take turns thinking critically and asking the opposing classroom yes or no questions that might help eliminate the numbers on their number board. We discuss with our classmates and try to pick the best questions that would eliminate the most possible answers.  Question by question, students on both sides of the Skype are able to eliminate possible numbers until….WAHLA! Their faces light up… excitement is present and we realize: We have found the other classroom's mystery number!

This week second graders worked hard to find the mystery number of two separate classes. We used mathematic academic vocabulary and practiced the life skills of manners and speaking in complete sentences when we asked and answered questions. Watch our video to see all the fun!!!