Tuesday, October 8, 2013

Math goblins

Can you see the eyes peeking above the circle?
That's a math goblin who does tricks to our numbers. Sometimes when we put a number in, the number grows. Sometimes we have a mean math goblin who takes away from the numbers we put in.
Can you figure out what happens to the numbers in this picture?
Can you fill in the missing places in the table?

Most of the time grade 3 students can solve the math goblin mysteries.

We are learning about functions, equations and missing variables. Sometimes it is easier to understand the idea than to learn the tricky vocabulary.

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