On Friday, our friends from Ms. Warren's class joined us and we had our first Mystery Number Skype post! We Skyped with Mrs. King’s 2nd grade class in Indiana. Instead of trying to figure out what state Mrs. King’s class was in, we were trying to figure out their mystery number! In addition, Mrs. King’s class was trying to figure out our mystery number. Our mystery number was 38. To figure out Mrs. King’s class’ mystery number we asked a variety of yes/no questions. Some of the questions we asked were:
Is your number odd?
Is your number greater than 50?
Is your number a multiple of 5?
Does your number have a 9 in the ones place value?
Does your number have a 3 in the tens place value?
Every student had a 100s chart and marked off numbers on their hundreds chart when Mrs. King’s class answered one of our questions. After a lot of hard work and collaboration we figured out Mrs.King’s class mystery number was 22! We are planning on scheduling more Mystery Number Skypes this year!
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