## Edison Lee Does Percent!

One of my favorite cartoons is “The Brilliant Mind of Edison Lee” http://edisonleecomic.com/

In today’s newspaper, there’s a great Edison Lee cartoon, and it’s tapping into the fear generated by the new Executive and his administration. And I developed it into a problem for my 6th graders.

Here goes:

According to one source, if you were to dig and build a storm or bomb shelter in the basement of a 1 family home, it would cost between $5,000 and $6,000.

If you could use the 25% savings that Edison Lee found in the newspaper, what would be the range in prices of a storm or bomb shelter?

Show all work and explain your thinking clearly!

## The Student-to-Teacher Dictionary

Sometimes students say precisely what they meant. “I don’t understand the question” means they don’t understand the question. “This is too hard” means it’s really too hard.

But sometimes, it takes a little translating…

Half of my classroom conversations go like this.

Student: “I don’t get the question.”

Me: [*longwinded, exhaustive explanation of what the question is asking*]

Student: “Yeah, I knew that. But I don’t get the question.

Me: “Oh. This is one of *those* conversations.”

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## 30-60-90 Triangle Theorem

Motion graphics were created by Mac Square. How do you make sense of the 30°-60°-90° triangle theorem? What activities or resources have you used with your students to investigate the why?

Source: 30-60-90 Triangle Theorem

## Geometry – Circle Area

Illustrated below is a quarter-circle, containing two semicircles of smaller circles. Prove that the red segment has the same area as the blue.

## ⚡Presentation ‘Math Groups Now What? Josh Holt, Principal Catherine Castillo, Numeracy Coach Portland Elementary.’

Math Groups Now What? Josh Holt, Principal Catherine Castillo, Numeracy Coach Portland Elementary.