On Thursday, we had our first Number Mystery 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 73. 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 17! We are planning on
scheduling more mystery number skypes this year!
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