## Saturday, April 28, 2012

### Things I've Tagged (weekly)

Posted from Diigo. The rest of my favorite links are here.

## Saturday, April 21, 2012

### Things I've Tagged (weekly)

• tags: ccss

• tags: flippedclassroom

• RT “@Edtweeps: Seven YouTube Channels Not Named Khan Offering Math Lessons via @rmbyrne http://t.co/zLm9Bvuf” #mam #mathchat

tags: mam mathchat

• I split the class into groups of two or three and gave each group a sheet of this graphing paper with one of the lines darkened (which is to be the directrix).  I told the students to plot seven or so points that are equidistant from the point in the middle and the darkened line.  We found a couple together, and then they were good to go for the rest.  When I gave them the following definition, they were able to fill in the  blanks no problem:

tags: Alg2 conics parabola

• New iPad App Lets Any Teacher Be Like Sal Khan | Edudemic http://t.co/peUyTyGp via @edudemic @educreations @KleinErin #edtech #ntchat

tags: edtech ntchat

Posted from Diigo. The rest of my favorite links are here.

## Monday, April 16, 2012

### #trigis

I don't remember if I mentioned it or not, but when we finished up trig in precalc a few weeks ago I had my students define trigonometry in a tweet. We did it on paper because they don't all have accounts (but quite a few do!) and I compiled them into a powerpoint.  Here are the results.

## Saturday, April 14, 2012

### Things I've Tagged (weekly)

Posted from Diigo. The rest of my favorite links are here.

## Friday, April 13, 2012

### Quotes of the Day

We've been learning about sequences and series in Precalc (along with a foray into mathematical induction, which is always fun) and for the past couple of days have been investigating Pascal's Triangle.  I got a neat exploration from Ann Gregson (who has since left the math world for elementary tech) and also gave the kids this activity from the Math Forum where you color the triangle according to a specific rule. (Because you use 5 colors, it's mod 5 arithmetic. Neat.)  I ended up with a bunch of neato triangles that I taped together, laminated, and am about to hang on the wall.  Or at least I'll hang it once my student aide cuts 'em out and assembles next period!

There was some confusion with the coloring because it appeared that the pattern would continue to be a series of identical-ish triangles.  Like this:

But instead there was a funny block at the bottom all the same color:

(I can't figure out why this picture is sideways. Oh well.)

Here's the arrangement of the correct ones:

The best quote of the day was from a student who was looking closely at the correct triangle.  "That makes sense... it would just be a giant fractal."  YAY!  :)

(And then another favorite quote from today, "Did you get my email?  (Me:  No.) Good, because I didn't sent one."  Oh, teenagers.)

## Sunday, April 8, 2012

### Post-Spring Break...

We're heading back to school tomorrow for a whopping 38 days of school (including exams). Today is the first day I turned on my computer to do anything that has to do with school. It was a nice break!

I'm trying to do some catching up on my Google Reader, so I thought I'd post some links that I enjoyed...
1.  Lisa Henry added a CCSS page to her blog.  It's much better than mine right now. :)

2.  I saw this a few weeks ago but don't think I mentioned it. Dan Meyer started a website called 101 Questions. It's a take on the #anyqs convo on twitter.

3.  Vi Hart vs. Sal Khan. Awesome.  (If you haven't seen any of her videos, you  need to. Go.)

4.  Kate Nowak posted some videos that go through the majority of an Algebra 1 course. Wow. (Here's her description of why.)  Our tech guru in my district would like me to look into the idea of the flipped classroom; these could be an amazing resource. Thanks, Kate!

That gets me through about half of what I haven't read lately. And I just realized that I promised the kids new seating charts tomorrow. Dang. I hate making seating charts.

## Saturday, April 7, 2012

### Things I've Tagged (weekly)

• This site provides countless books, films, plays, and television shows that all relate to specific math concepts. What a fabulous way to integrate math, language arts, history, and more! The site includes the title, year, and brief description. Teachers can browse by genre, medium, motif, and/or topic. Media include everything from comic books to plays to television series. Genres include historical fiction, children's literature, adventure/espionage, fantasy, science fiction, and more. Sixty-three fiction offerings are even available FREE (in their entirety) online! The site is still developing and frequently adds additional fiction titles. Students who enjoy fantasy will also enjoy choosing books from this site, since the author admits that not all math mentioned in all the books is "real" math!! The site allows teachers to search by keyword and also to browse new offerings in the compilation of titles.

Posted from Diigo. The rest of my favorite links are here.