### Week 5 – Mind Blowing Math, Class Fines, and Chatty Cathy’s

We’ve come to the end of week 5.  It’s actually Friday morning but it’s a staff development day.  I really enjoy staff development days.  You don’t have to be ‘on.’  You just show up and try to engage yourself in the discussion.  It’s coming at the end of a fairly good week.

### MIND BLOWING MATH

In Pre-Algebra, we started exploring exponents.  We delved into powers of 1, 0, and negative exponents.  Power of 1 was easy enough; 31 = 3.  Seems just like multiplication.  30 though…is actualy 1.  3-1 is…1/3…whaaaaat?  Without going too much into it, HERE’S a video of someone explaining why it works; consider it your 2 minute math lesson of the day 🙂

I also started a class Instagram and got a video of some of the students having an ‘aha’ moment and figuring out the reasoning behind some of these exponent laws (seen on the right here).  Probably the best part of the week.

We watched a Vi Hart video where she basically broke down all of math to just +1’s.  It’s pretty fascinating.  “I think my mind just blew up a little bit” was one student’s comment.  She talks a bit fast in the video; students actually asked if we could watch it again at half speed.  I highly recommend you take a look, especially  if you don’t consider yourself a ‘math person’ 🙂