If you are looking to have a synchronous online meeting with your students, you can easily accomplish that with CourseSites by Blackboard. It is a full featured version of Blackboard and allows free hosting of up to 5 courses. I use it to create a “meetings” course and then use the Live Meetings tool. It’s a full featured online meeting… Read more →
Elementary and middle school students can use Sketchpad activities to learn about relationships between numbers and early concepts of algebra. The following video shows an interesting activity which asks students to figure out the missing values of the shapes by using just their inequality relationships. The downloadable Sketchpad activity as well as related information can be found at: http://dynamicnumber.org/balance__reasoning_with_inequalities Sketchpad… Read more →
Desmos is a powerful online graphing utility. Below is a simple graph made with Desmos. You can click on it and then interact with the graph.
Just type in x^2-y^2 into Google’s search box and you get the saddle figure – and you can move it around as well! With these types of ready- to -go aids for graphing, anyone can incorporate serious graphics into teaching and learning math. Click on the image to see a “live” version of the surface \(z=x^2-y^2\).
It is now possible to run a limited version of Excel completely on the web. Click on the post title to see an Excel web app that I created. It’s interactive – you can change numbers and the results will change. More Excel material can be found at my website, http://www.mymathspace.net
I’m teaching an Intro to Proofs course this Fall, and am planning to have students also sign up online for a course called Introduction to Mathematical thinking, a free massively open online course (MOOC) offered by coursera . The course will be delivered by Stanford professor Keith Devlin, and looking at the online course outline, it looks like a perfect supplement… Read more →
The following is one of literally thousands of interactive demonstrations in the Wolfram Demonstrations web site. You will need the free CDF player to run the demonstration. A small collection of these can be posted on a class web site for students to explore and then answer questions interactively, perhaps using Google forms, or as a hand-in assignment. Formulating good… Read more →
You can enter an expression like sin(x),cos(x) into the Google search box, and it will give you a graph that you can zoom in on and trace! Pretty simple – nothing to download! Can ditch the graphing calculator for just plain graphing. You can also check out the Desmos online calculator, which has many features. I found out about it… Read more →