Sunday, April 9, 2017

Having a Unit Circle Tournament Using Purpose Games


If you want students to know their radians, sines, and cosines quickly, then this is the game for you and your students--especially if they are a competitive group like mine.

Students will be given a radian, point, quadrant signs, or an axis label and they have to click on the blue button quickly that matches it. And it's timed! I ask students to shoot for their best time with 100%. One of my students made top 5 of all players in the world with 37 seconds. We have no idea how she could do that!!

Click here for the link at Purpose Games. In the past, my students have logged in and played the game to try to get their names on the leaderboard. I assign it for homework the night after teaching the unit circle and give a bonus point to the top 3 students. But this year, I found the tournament section!

I discovered that there are lots of things to do on this site, but all I have tried so far is to click on CREATE at the top and create a group.

I entered in all of the info and I actually did make it public because when I initially tried invite only, I couldn't get it to work right. No one else joined other than my classes, so I think it's fine to do it that way.

You can name the group whatever you want and even can add a picture. Then click on create a tournament, in the yellow box. On the original, I did write some clever things, but for show here, I didn't. 

Enter the name, description, and when you want the tournament to start and end. Save the tournament.


Search for "unit circle" in the search box below and click enter.

Lots of choices pop up. I choose the one by felliax08. Click on "add game." Then click "publish" at the bottom. You will get a link, and you can share it with students and the tournament is on!
A few things to note: π/2 is not on there. Also, "x-cosine" means click on the button that is the x-axis, and "y-sine" means click on the button that is the y-axis. There is a glitch for quadrant signs. x,x means +,+, etc, so the plus signs come out as x's. Otherwise, it's all good, and my kids really enjoyed playing it. There was a lot of chatter about it the next day in class. AND they know their unit circle!


Tuesday, April 4, 2017

Ted-Ed Virus Riddle

My third Ted-Ed riddle was published yesterday. Here is the link to the actual lesson:
http://ed.ted.com/lessons/can-you-solve-the-virus-riddle-lisa-winer.

This was a fun one to do because it required me to research some Discrete Math topics that I learned back in grad school, like Hamiltonian Paths and circuits. The playful ending of the "Traveling salesperson" is a famous graph theory problem that students likely don't know about yet.

It's not a particularly difficult one, but certainly can stump a class for a good five minutes. Show it in class and be sure to show the second part even if kids get it right so they learn a little bit about graph theory and Sir William Rowan Hamilton...no, not THAT Hamilton!

Here are links to my other Ted-Ed riddles:
This one is more "mathy" and great for higher levels, though MS kids do enjoy it, too. 


This one is an easier one that takes some time for kids to figure out. This could be done with all levels and I love having students "act" out the part. 


And here's an all-time favorite that I did not write, but I love to do with kids. Again, having them act it out is very fun!



Monday, April 3, 2017

Algebra 2 Honors Unit Circle Projects 2017

Each year, I give my students a Unit Circle Project to help them to remember the Unit Circle and to show off their creativity. Entries from two years ago were also great and can be found here. This year, students also rocked their projects. I think this is the hardest working class I've had in a very long time, and I am so proud of them. Students are told that they are not allowed to use project ideas already posted on the Internet, as that would be plagiarism, just as copying a paper is against our Honor Code. I showed them some projects I found online and told them theirs should all be original. I use guidelines and the rubric from http://secondarymissrudolph.blogspot.com/2014/07/unit-circle-art.html, and also tell students that they must make their own circles and not use pre-made materials for them. Here are some of their projects:

I've seen these crayon melting effects on Pinterest!
"Arc" Reactor! Such a clever name (Ironman)

Look at the pepperoni, pineapple, and pepper cut-outs. The crust is very creatively done,
and there is real oregano sprinkled throughout!

A play on Dr. Suess

This student drew this by hand and dedicated it to her father. 

Beautiful hand drawn peacock!

This student "made" her own lampshade from scratch!


Though I did get a few dartboards, this one actually works with magnetic darts!
The student put a magnetic sheet under his hand drawn board.
I liked the "Stonehenge" look of this, particularly as I am traveling there this summer!
Stay tuned for my blog on the Unit Circle Tournament, which I will try to blog about later this week!