Desmos, the company known for its online graphing calculator, recently released a new online geometry tool. Desmos Geometry is designed to help students understand geometry concepts through the use of drawing and diagram manipulation tools. Your students can use Desmos Geometry or you can use to create demonstrations. Desmos has created a page of resources for learning how to use Desmos Geometry.
It's important to note that Desmos made clear in its launch announcement that Desmos Geometry is meant to be a fast and light tool, it's not meant to duplicate the features of tools like Geogebra.
Showing posts with label online calculators. Show all posts
Showing posts with label online calculators. Show all posts
Monday, April 17, 2017
Tuesday, September 13, 2016
Symbolab - An Online Graphing Calculator and More
Recently, a Symbolab developer contacted me about some new features of the service. First, Symbolab is now more than just a search tool. It includes a free graphing calculator and a free integrals calculator. Symbolab has also added a neat chemical reactions calculator. Finally, students can now find practice problems on Symbolab. The practice problems cover a wide array of topics in math. Most topics cover in the practice problems are accompanied by helpful videos for students to review if they get stuck on a problem.
Applications for Education
There are other sites and apps that provide similar services to those of Symbolab. Not being a math teacher myself, I can't say that Symbolab is inherently better than its competitors. I will point out that it's nice to have multiple options for students to choose from when looking for free scientific calculators.
Monday, October 1, 2012
Eight Alternatives to Buying Scientific Calculators
One of the problems that many mathematics and science departments confront is accounting for all of the scientific calculators they lend to students. Like textbooks no matter how diligent a school is in tracking how many are lent out, one or two always seem to disappear by the end of the year. Also like textbooks there are some good and free alternatives to buying scientific calculators. Here are some that you can try.
Desmos offers a fully functional, browser-based graphing calculator. The calculator performs all of the functions you would expect to see in a graphing calculator with a couple of extras that you don't find in typical graphing calculators. Desmos allows you to share your equations and graphs through a Bit.ly link. Desmos graphs your equations as you type them and redraws them as you alter your equations. And because it is written in HTML5 Desmos works on your iPad.
Microsoft has released a new scientific calculator that you can download for free (Windows only). Microsoft Mathematics 4.0 is a graphing calculator that plots in 2D and 3D. Of course, the calculator does many other functions such as solving inequalities, converting units of measure, and performing matrix and vector operations.
There are a lot of calculators online for performing all kinds of functions from simple addition to solving complex equations. Calkoo is a website that offers forty-three free online calculators for a variety of functions. The list of calculators that Calkoo is divided into ten categories. Those categories are mathematics, measurement & conversion, saving & investing, capital budgeting, cost of capital, wages & taxes, financial analysis, health, loan & leasing, and stock analysis.
Encalc is a free online scientific calculator. Encalc describes itself on its homepage as follows, "Encalc is an online scientific calculator. Its strength lies in its ability handle units and dimensional analysis, to define variables and its large database of constants. Parenthesis and scientific formulas are also supported." One of the features that I really like about Encalc are the explanations of how different variables and constants function within an equation or formula. Encalc can be embedded into your blog or website too.
Web2.0calc is a free online scientific calculator. While it won't replace the TI-85, it can do what your average high school student needs it to do. The best part is, you don't have to use it on the Web2.0calc site because they offer three widgets that you can use to embed the calculator into your own blog or website.
Speed Crunch is a free scientific calculator application for Windows, Mac, and Linux operating systems. Speed Crunchperforms all of the functions necessary for high school Algebra and Geometry courses except graphing. In addition to performing all of these functions, Speed Crunch has a "math book" containing commonly used equations and formulas. One Speed Crunch feature that appealed to me from a design standpoint is the color coding of equations to differentiate between constants and variables.
Graph.tk is a free online graphing utility that I found in the Google Chrome Web Store. Graph.tk allows you to plot multiple functions through its dynamically resizing grid. To graph an equation on Graph.tk just click the "+" symbol to enter a new equation. Click here to watch a short video of Graph.tk in use. One thing that the video doesn't show and isn't clear the first time you use Graph.tk is that you need to delete the existing default equations before you start.
Scientific Calculator is a Chrome web app that works offline and online. The calculator performs all of the functions that you would expect and it offers a couple of handy additional features. When it is connected to the web the calculator records your calculation history. Any scripts that you write in Scientific Calculator can be saved online and shared for use by others.
Graph.tk is a free online graphing utility that I found in the Google Chrome Web Store. Graph.tk allows you to plot multiple functions through its dynamically resizing grid. To graph an equation on Graph.tk just click the "+" symbol to enter a new equation. Click here to watch a short video of Graph.tk in use. One thing that the video doesn't show and isn't clear the first time you use Graph.tk is that you need to delete the existing default equations before you start.
Sunday, June 17, 2012
Encalc - A Free Scientific Calculator
Encalc is a free online scientific calculator that I initially tried more than four years ago. I revisited it this evening and discovered that some more features have been added to it. The two biggest enhancements to note are the addition of a graphing function and the addition of embed codes that you can use to put the calculator on your website. Try Encalc as embedded below.
Applications for Education
Scientific calculators don't come cheap. Some schools have the students buy them other schools provide them and sign them out just like a textbook. Either way someone is absorbing a large cost. Fortunately, for schools and students facing budget crunches, there are web tools like Encalc available for free.
Applications for Education
Scientific calculators don't come cheap. Some schools have the students buy them other schools provide them and sign them out just like a textbook. Either way someone is absorbing a large cost. Fortunately, for schools and students facing budget crunches, there are web tools like Encalc available for free.
Sunday, January 1, 2012
Calkoo - An Excellent Set of Online Calculators
Applications for Education
One of my favorite activities in middle school and high school was the stock market simulation activities that two of my teachers had us do. Calkoo offers a good set of calculators that could be used for stock market simulation activities. Of course, if you just need some basic online calculators for your students to use Calkoo puts a bunch of good ones in one place for you.
Here are five free scientific calculators you might also want to try.
Monday, September 19, 2011
Desmos Improves Their Browser-based Graphing Calculator
Applications for Education
Desmos could be the replacement for those expensive TI calculators that sometimes disappear from schools. I like that you can share your work via shortened Bit.ly links. I could see teachers modeling with Desmos and sharing. I could also see students sharing to do collaborative problem solving.
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