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File Cabinet!

Today's task - Surface Area.

We had more fun by using Mr. Stadel's lesson - File Cabinet. They had a post it to measure, rulers, paper and a calculator. They started by making a guess. Some of them got pretty close (960!)

My students are still not used to doing these types of tasks... their questions going into a 3 act tasks hint to a bit of insecurity in being asked to think outside the box, or outside the filing cabinet.

Still we got to the key question: How many Post-Its does it take to cover the filing cabinet?

Other questions:

"What did he spend on post its to do this?"
"How long did this take him?"
"Are you going to tell us how many squares inches is in a post it?"
"Does he have a life?" (Sorry Mr. Stadel)

Their answer: 936

"Does this mean if we take one post it and cut it up, it would cover all the spots he left blank?"

:)



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  2. Great to see your students exploring surface area. Don't worry about that last question: "Does Mr. Stadel have a life?" Essentially, I interpret that question as "How long did it take?" and BAM! You have another task you could give your early finishers.

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    1. Thank you for reading my post and for sharing your lessons. :)

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