155 – staircases and steepness

This is one of my all-time favorite lessons.

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154 – penny pyramid, continued

Today we’re doing the sequel, trying to figure out the equation.

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153 – penny pyramid

My geometry kids are working on Penny Pyramid, a 3-Act lesson from Dan Meyer.

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152 – geometric transformations

My geometry students are working on this geometric transformations workout #1-#9. Good stuff. (I got this from one of our UCSB Common Core Math Project workshops.)

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The 6th graders continued with Designing Buildings.

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151 – designing buildings

Fantastic lesson every time. I wrote it up here.

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150 – maximizing volume

A shorter version (no popcorn) of this lesson from last year.

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149 – similar triangles, continued

Day 2 where students were given another classmate’s paper to work with.

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148 – similar triangles

I wrote up this lesson here. It really went well.

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147 – solids

We have one more week before State testing, so we’re just starting our unit on solids today.

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I really like this kit from EAI. (Yikes, didn’t realize it’s $115 though!)

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146 – comparing volume

I surveyed all three classes to see what their guesses are for the difference in volume between a paper folded hot dog way or folded hamburger way. The majority says they are the same.

I think I’ll write the results up in a post.

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