Here is an actual problem from a fourth grader’s math workbook. [See photo.] Since the photo is a little dark, I have transcribed it below.

“Reasoning Hwong can fit 12 packets of coffee in a small box and 50 packets of coffee in a large box. Hwong has 10 small boxes and would like to reorganize them into large boxes. Which boxes should he use? Explain.”

Speculation has ranged from the Stonehenge and pyramids lining up with Orion to Fermat’s last theorem to just chalking it up as an inscrutable mystery of the Orient.

If you can deduce the answer, please explain it to me so I can explain it to a 10 year old.

## 8 comments:

I assume they mean Hwong has 10 small boxes full of packets of coffee. He is to reorganize them into as many large boxes as possible. He therefore needs 2 large boxes and 2 small boxes.

The question should have been clearer. Clearly!

You are saying that a fourth grader should assume the 10 small boxes contain 12 packets each when the set-up simply says Hwong can fit 12 packets in a small box. What if I told you that Hwong decided to use 3 large boxes, one of which would be only 40% full? That would be as many large boxes as possible.

Honors question: was the coffee decaffeinated?

When I was an undergrad I had the privilege of taking two math courses from a brilliant professor. He finished his PhD from Princeton at the ripe age of 18 and had earned his scholarship from his scores on the Putnam exam.

Anyways, he told me that one day in class a professor had scribbled notes all over the board for about 20 minutes and then finished his lecture by saying, "Thus, the conclusion is obvious..." and then stated his conclusion. One student raised his hand and replied, "But Professor, it's not entirely clear..." The professor stormed out of the room, leaving the students dumbfounded at his actions and the chalkboard.

20 minutes later, the professor came storming back into the room, looked at the board, looked at the students, and then said, "No, obviously it's clear. Class dismissed."

Ha!

As to the coffee problem... Why not open the packets and spill their contents into one large box?

Are they teaching philosophy in elementary school these days? My third grader hasn't mentioned it but that could be because he knows I'm not that smart!

Funny, thanks for sharing!

Hi im in 5th grade and this was on one of are homework papers.

Hello Anonymous in 5th grade,

Thanks for the comment. I hope you got the answer right.

I GO TO FIRESTONE PARK AND IM IN 5TH GRADE AND THIS WAS ARE HOMEWORK AND I HAD TROUBLE

I believe you. I couldn't answer it either.

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