OMG TGIF it's been a long week.
IDK if there's a name for this type of activity, but groups made purposeful mistakes, then switched and tried to find others' mistakes.

Log war and beginner trig notes: my lessons all had something inspired by Kate Nowak today!

Getting seniors to move after lunch can be tough...
Me: "Ummm, line up in order of increasing skew"
​Them: This

More hallway math: kinesthetic polynomial practice with strings! (need a different colored string...)

Ever try something in class without really getting it? Got caught today with this Bocce Ball activity from Bob Janes. I should have done a little more reading about how to tie to SD, but we got some good stats practice out of it anyway (and it was fun!).

The MTBoS Search Engine has really been saving my life (or at least my classes) this week:
Old Dan Meyer post
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Rational expressions question stack from Sarah Carter
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Pretty good lesson on simplifying. Thanks folks!

If we're going to do statistics, we need to collect some data, right? I've ended up using library books for this for the past couple of years. Tedious, but hopefully going to lead us to the Central Limit Theorem.

Polynomial long division relays in precal. Sometimes the old tricks are the best...

​Some heated discussions and a lot of helping hands on this second try at a test walk. 

Precal students peer and self assessing birthday polynomials with self-created rubrics. Think this went well, but I need to organize it better next time to make recording the results easier.