I’m starting to sound like an advert now, so I’ll stop, but if you are a maths teacher and haven’t tried it yet, do so soon. ![]() Of course, graphing software has existed for a long time, so what I’m talking about is nothing new, but before now I’ve never used graphing software that is so quick and easy to create with and, more importantly, that is this high-quality for free! I don’t waste time drawing the graph (by now I’m quite happy my students can plot a curve), and if I want to change my example I only have to alter a number or move a slider. From the front of the classroom I can display a quadratic and show the roots/intersections with axes/vertex immediately and talk about these features. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. I’ve been giving some thought to why Desmos seems to achieve this so well and I think it’s because without having to physically draw the graphs all the time students can spend more time thinking about the principles behind them. Explore math with our beautiful, free online graphing calculator. I love watching students get excited by graphs (’cause graphs are just wonderful, let’s be honest here) and I love using resources in my classroom, both from the front and amongst the students, that make graphs (“I don’t like drawing graphs”…”I don’t get graphs”) and the principles of graphing more accessible and easier to understand. You can watch what all your students are doing/have done from your computer and target your help and questioning where they are most needed. If you haven’t encountered the Desmos Teacher Site yet, it’s great fun, and really well thought-out. They are also asked to explain their thought processes before they attempt the graphical transformations. Explore math with our beautiful, free online graphing calculator. In my activity, students are asked to fit some parabolas to photos of bridges and fountains. One of the first activities I’ve made is based on the idea of fitting graphs to photos of naturally-occurring or man-made parabolas, which I first encountered in Adrian Oldknow’s book Teaching Mathematics Using ICT back in 2004. Explore math with our beautiful, free online graphing calculator. ![]() Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. Explore math with our beautiful, free online graphing calculator. Write a description of how you wrote one equation that you wanted to place on your image (how did you make it pass through a certain point or intersect something).I’m intrigued by the Desmos Activity Builder and where it might be useful for my students. Explore math with our beautiful, free online graphing calculator. ![]() On your poster, show the algebra to find where three different pairs of equations intersect. Feel free to post demonstrations of interesting mathematical phenomena, questions about what is happening in a graph, or just cool things youve found while playing with the graphing program. As you work you’ll need to make sure that your equations intersect at the correct point, or solve to find the point where two equations do intersect. A subreddit dedicated to sharing graphs created using the Desmos graphing calculator. Desmos allows you to do that by using brackets. Sine Cosine Tangent Parabola Ellipse Circle Hyperbola Polynomial (with degree >2) Exponential Logarithmic Rational LinearĮach equation should have a domain and/or range indicating how much of the curve should be drawn. You will use at least five of the types of graphs we have studied this year. You’re going to draw a picture! Here’s your chance to be creative! You’ll make a design on Desmos and then make a poster presentation of your final product as well as the process. We didn't get to include systems as much as I would have liked, I need students to recall how to graph and analyze the variety of equations, but I really hate review packets. ![]() It's the end of the year (well, it was over a month ago), we've completed the curriculum to the extent we're going to and it's time to review.
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