Thursday, December 22, 2016

Desmos Activities

Thanks to one of our county curriculum coordinators, I have discovered Desmos Activities.  I have used the Desmos online graphing calculator for several years, but had never checked out the options for classroom activities.  I must say, I wish I had done so sooner (no, Desmos is not paying me to advertise).  There are quite a few pre-made activities to choose from; some made by the Desmos staff and some shared by teachers.  There is also a feature that allows you to create and share your own activities.

I took advantage of the ability to create your own activities and made one for my Geometry kids to practice with the properties of parallelograms.  Here are a few screen shots of my activity.
Multiple Select Question

Free Response Question

Card Sort

I checked out a classroom set of Chromebooks from our Media Center (we are blessed with access to such technology) and did this as a classroom activity.  My students enjoyed the variation in our routine, and I was able to see their work on my iPad and give feedback as they were working.  I will definitely use this activity again.

I have set up another activity for my Honors Advanced Algebra students to investigate the graphs of cube root functions.  We will do this after we return in January.  Hopefully it goes as well as the one that I did with my Geometry classes in November.  Here are a few screen shots from the Advanced Algebra activity.  

Free Response - Students can view each others' answers

Graph with sliders so students can investigate the impact of changing various parameters

Students create their own graph

Free Response - Answer viewable only by the teacher

Multiple Select Question

The links to my activities are below.  Check out some of the other activities available also.  There is lots out there!

Saturday, August 20, 2016

Pair Race Activity

Finding new activities that can be used to help basic mathematical skill development can be difficult.  I ran across this idea last year at another blog (I'd credit the blogger if I could remember where I found this) when I was looking for something to use to practice operations with rational expressions.  I've used this idea with both honors students and students who struggle and it worked great with both groups.  Sometimes a little competition goes a long way to motivate kids to work on something they wouldn't otherwise want to do.

The way this activity works is that you design two sets of questions that have the same answers, then pair the kids up.  I have my students turn their desks to face each other and put the page between them with a question set facing each student.  Each student has to work through their question set and the partners compare answers as they go.  If the answers don't match they have to check their work and figure out who made a mistake.  My kids really seemed to enjoy the competitive aspect of this activity.  I normally turn it into a race and give out a small prize for the first 3 groups to finish, or for the 3 groups that get the most completed correctly with all work shown.

Here is a sample of the questions on multiplying square roots that I used with my kids yesterday.  The students in this class are all a semester behind in math and they did GREAT with it.  It is definitely an activity that can be tailored to groups of students of all ability and motivation levels.



Sunday, July 24, 2016

Free Graphing Tool

So I've finally started planning for this year.  I don't have as much done as I had hoped, but does anyone ever?  For my Honors Advanced Algebra class I wanted to design a task where my students analyzed a piecewise function created out of linear and quadratic functions.  I typically use Geogebra and Desmos to create the graphs that I use in handouts and assignments, but I couldn't figure out how to get either one to easily and nicely graph piecewise functions.  In my case necessity is always the mother of a google search.  Fortunately this time I was successful.  I found an awesome (free) graphing tool that will not only graph piecewise functions, it will graph asymptotes, implicit functions and slope fields.  While I won't use all those features, our AP Calculus teacher was quite excited about them.  The site isn't very fancy looking but it's fairly easy to figure out and is definitely a good addition to any list of math resources.  Amazingly enough it is just called "GraphFree" and the website is www.graphfree.com.  I hope you find it as helpful as I did.

Home Page of GraphFree

Snapshot of Graphing Features



Tuesday, July 19, 2016

Summer Project and New Classroom Arrangement

I've really enjoyed this summer.  Between vacation, helping my sister move, and spending time with family I've barely been home long enough to even start on my summer to-do list.  What little time I have been home seems to have been taken up with the never-ending project that I decided was necessary.

I need to totally reconfigure my classroom this year, and I needed a shelf much deeper than a bookshelf to hold graded papers and make-up work for students who have been absent.  Unfortunately shelving deep enough to fit my needs wasn't going to be found in the "random extra furniture" location on campus so off to the thrift stores I went.  I walked in thinking "I have no idea what I need, but I'll know it when I see it."  I had no luck at the first two places, but luckily the third place I walked in had exactly what I was looking for.  After calling a friend to make sure I wasn't any crazier than normal (and to talk her into helping me transport my find since it wasn't going to fit into my car -I measured) I paid $30 for a cabinet that, while a little worse for the wear, was exactly the size I needed.


After taking off the doors, taking out the drawers, adding in a plywood shelf where the drawers were, and a coat of "pool" chalk paint this was the result.


Of course then I decided that I couldn't waste the doors so I got the grand idea to turn them into mini-chalkboards.  I googled "magnetic chalkboard paint" and the first two blogs I pulled up said it doesn't work.  The chemicals in the chalkboard paint counteract the magnetizing properties of the magnetic paint.  Basically you can do one or the other, but if you try to do both it doesn't work.  So much for my grand idea.  Thank goodness one of them gave an alternative.  Buy a cheap piece of sheet metal and spray paint it with chalkboard paint.  Brilliant.  Sheet metal is relatively cheap and I didn't need a lot so I decided to go for it.


Doors from the original cabinet chalk painted in "celery".

Sheet metal spray painted with chalkboard paint.
Magnetic Mini Chalkboard

The final product turned out great. I now have two magnetic mini chalkboards.  One will hold no-name papers (you would think that Sophomores would have learned to write their name on their work but apparently that's not the case) and the other will go over the cabinet with directions on claiming graded work and getting make up work.

With the help of the same friend who helped me transport the cabinet to my garage for its make-over I was able to get it all into my classroom.  The final product was EXACTLY what I needed.

Finished shelving
There are 3 orange crates that will house all graded work.  Each student will have a folder with his/her name on it.  As work is graded it gets filed in these folders.  It is the students' responsibility to pick up their own work.  I tried this last year with half of my classes and it worked great.  No more wasting time in class passing back work and no more papers left on my floor from kids who didn't want their work.  Perfect!  It takes a little bit of time to file the papers, but once you get a system it's not bad at all.

The purple crates (and there will be 3 of them also) will house any handouts/notes/work that needs to be claimed by absent students and the binders above the purple crates have details about exactly what was done in class each day so students know exactly what to look for and what they should turn in.

I've finally admitted that summer is almost over (I got my pre-planning agenda in the mail today so it's official) and I need to get back to work.  My classroom is almost done, there are just a few finishing touches that I need to add and it will be ready.  Maybe during pre-planning I'll actually get to do some planning.

Here are a few pics of my classroom in its current state.  I love the cubicles.  They house all my markers, colored pencils, rulers, and classroom supplies.  They are easy to access but not visible.  Not cheap, but definitely worth it in my opinion.  The pink basket on top of the shelf holds tape, a hole punch, and a stapler.  These are the things the students are allowed to use.  If it's on my desk DON'T TOUCH IT.  The blue baskets to the left of the pink one are my turn in baskets.  There is one for each class period and that is the ONLY place that work gets turned in  I've had these baskets about 5 years and they are worth 10 times their weight in gold.


Yes, my desk and the table in front of it are covered in contact paper and edged with turquoise duct tape.  When the top of your desk and table start peeling off you get creative.


This is the back of the room, and no the desks aren't arranged yet.  The closet in the back is the only storage built into the classroom, hence the cubicles on the other side of the room that I use to store supplies.  In the back by the closet was the best location I could find for my new shelving.  It's well inside the room so students getting their work should not cause a traffic jam at the door, it's away from my desk so I won't have students crowding around my desk looking for things, and it's not taking up space I would be using for desks anyway.  Hopefully it will work well.  I guess we will see in about two weeks.