Showing posts with label graphing calculators. Show all posts
Showing posts with label graphing calculators. Show all posts

Monday, January 22, 2018

Desmos Classroom Activities - Lessons With Online Graphing Calculators

This post originally appeared a few years ago. I'm sharing it again because Desmos was just added as an option in OneNote

Desmos is a free graphing calculator that is available to use in your web browser and as an Android and iPad app. The Desmos 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. Desmos graphs your equations as you type them and redraws them as you alter your equations.


Applications for Education
Desmos offers a good collection of resources for teachers. The teacher resources page features a dozen pre-made activities that you can distribute to students. The activities take advantage of the functions in Desmos while helping your students learn about graphing, problem modeling, algebra, and geometry. Once you've reviewed some of the pre-made activities in Desmos you can use the Desmos activity builder to create your own lessons and distribute them to your students.

Friday, August 19, 2016

Two Graphing Tools for Google Docs

The question that I often hear from mathematics teachers about Google Documents is, "are there any features for me?" The answer is, "yes, but they don't always jump out at you." Google Docs does have a built-in equation editor that you can access from the insert drop-down menu. To create graphs in Google Docs you'll want to grab either the g(Math) or the Wizkids CAS Add-ons for Google Docs.

g(Math) for Google Docs offers other features in addition to a graphing. Besides creating graphs you can insert handwriting entries and statistical displays. g(Math) also supports voice input. Extensive tutorials for g(Math) can be found on the g(Math) Help website.

Wizkids CAS is another Google Docs Add-on that offers a graphing calculator feature. Wizkids CAS offers tools for solve=ing equations and plotting graphs, finding numerical and exact solutions, and simplifying and factoring expressions with variables. The video embedded below provides an overview of the features in Wizkids CAS.

Friday, September 4, 2015

Find and Create Graphing Problems in the Desmos Teacher Resources

Desmos is a free graphing calculator that is available to use in your web browser and as an Android and iPad app. The Desmos 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. Desmos graphs your equations as you type them and redraws them as you alter your equations.


Applications for Education
Desmos offers a good collection of resources for teachers. The teacher resources page features a dozen pre-made activities that you can distribute to students. The activities take advantage of the functions in Desmos while helping your students learn about graphing, problem modeling, algebra, and geometry. Once you've reviewed some of the pre-made activities in Desmos you can use the Desmos activity builder to create your own lessons and distribute them to your students.

Monday, April 6, 2015

GraphFree - An Online Graphing Tool for Students and Teachers

GraphFree is a new online graphing tool for students and teachers. On GraphFree students can enter plot graph points manually or enter an equation or function to see a graph generated. Each graph can then be saved as an image to use in a document, a presentation, or in a SMART Notebook folder. GraphFree provides a helpful gallery of tutorial videos and an extensive guide for new users.

Applications for Education
GraphFree provides a nice alternative to some expensive graphing calculators and apps. For a lot of high school students GraphFree will provide all of the functions that they need. GraphFree can also be used by teachers to simply download a blank graph to use for in-class graphing assignments done on paper.

Chromebook users might also want to take a look at these Chrome apps for graphing.

Thursday, January 8, 2015

A Couple of Graphing Calculators for Your Chrome Browser

A few days ago I wrote about the new graphing calculator Android app offered by Desmos. In that post I neglected to mention that Desmos also offers a Chrome app. The Chrome app version of Desmos works like the web version. Along with all of the graphing functions Desmos allows you to share your equations and graphs. Desmos graphs your equations as you type them and redraws them as you alter your equations.

Graph.tk is a free online graphing utility that is also available in the Google Chrome Web StoreGraph.tk allows you to plot multiple functions through its dynamically re-sizing grid. To graph an equation on Graph.tk just click the "+" symbol to enter a new equation. One thing that isn't clear the first time you use Graph.tk is that you need to delete the existing default equations before you start.

Applications for Education
If your school has gone 1:1 with Chromebooks, Desmos and to a lesser degree Graph.tk could be good alternatives to trying to keep track of TI-84's or other graphing calculators.

Monday, January 5, 2015

Desmos - A Graphing Calculator for iPad, Android, and Your Browser

Desmos is a free graphing calculator that has been available for a few years as a browser-based tool and as an iPad app. Late last month Desmos launched a free Android app.

The Desmos 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. Desmos graphs your equations as you type them and redraws them as you alter your equations. See some of the best features of Desmos in the videos embedded below.

The Android app will work without an internet connection nor do all of the sharing features work on Android version.

Friday, November 2, 2012

Useful New Features Added to Desmos Online Graphing Calculator

Desmos, the free online graphing calculator, recently announced some useful new features that mathematics teachers will like. Under the surface Desmos updated their infrastructure to make the calculator run up to fifteen times faster than before. On the exterior Desmos now has a share button that allows you to email your graphs and or embed them into blog posts. Desmos has added a textbox option in your graphs to help you explain what is happening in your graph. Learn more about the Desmos updates in the video below.

Applications for Education
The option to embed your graphs into a blog post could be useful when you're writing explanatory blog posts for your class. The sharing option could be used by students to send homework responses to their teachers. Students could also use the share option to ask for help from teachers, tutors, and peers when they get stuck on a problem.

Friday, June 15, 2012

Seven Chrome Apps for Students to Use Offline

Earlier this week Google added a new section off featured offline apps in the Chrome Web Store. The section of offline apps is quite large. I went through and picked out seven free offline Chrome Web Apps that could be useful for teachers and students.

The Daum Equation Editor is a free, online tool for quickly writing equations that you can save as text or images to use in documents. You can use the equation editor by typing on your keyboard and or selecting symbols from the Daum Equation Editor's menu.

Magic Scroll is a Chrome web app that you can use to read ePub files on your desktop or laptop even if you do not have an internet connection.

Quick Note is a sticky note application that runs in your Chrome web browser. You can take notes offline in your browser and sync when you reconnect to the web. If you utilize the Chrome syncing option, you can access your notes from any computer. Quick Note can sync with Diigo too.

Useful Periodic Table is a reference app for chemistry students. Useful Periodic Table contains the information high school chemistry students need. The app also includes some practice quiz activities.

If you or your students struggle to come up with strong passwords, Password Chameleon is an app to try. This app will generate a random, secure password for any site that you visit.

Geo Notepad is a Chrome application that offers a different take on reminders and notes. While most note-taking and reminder services are based on time stamps, Geo Notepad is based on location. When you write notes, you can assign them to locations. Then when you return to that location Geo Notepad will show you a list of your notes from that place. For example, I could create a list of notes that are tied to my house and a list tied to school. Then when I get to school in the morning Geo Notepad will open the list of school-based notes for me.

If you're a frequent user of Google Docs like I am, you will want to install the Chrome App for Google Docs. The Chrome App for Google Docs allows you to edit your documents when you're not online. When you reconnect to the web your documents will be synced to your Google Docs online account.

Sunday, January 22, 2012

Online Graphing Calculators Desmos Improves Again

Desmos, a free online graphing calculator that I've written about a couple of times in the past (here, most recently), has updated their offerings again. The most significant update is a switch to HTML5 which means that Desmos will now work on iPads. The second significant enhancement is the option to register for an account and save your work online or share your work online.

For an overview of Desmos, watch the video below.


Applications for Education
As I've mentioned in the past, Desmos could be a good alternative to expensive TI-84 (or whatever the latest model is) calculators. If your school has a 1:1 program with laptops or iPads you can use Desmos in any classroom.

I got this news about Desmos from Audrey Watters at Hack Education

Monday, September 19, 2011

Desmos Improves Their Browser-based Graphing Calculator

Desmos, a free online graphing calculator that I reviewed in June, recently added a handful of new options that should be appealing to mathematics instructors and students. The new features enable better handling of strict inequalities, polar inequalities, internalization, slider bars, and graph tracing. The video below provides an overview of the Desmos 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.

Saturday, June 25, 2011

Desmos - A Graphing Calculator in Your Browser

Desmos is a new company that has created 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. Watch the video below to learn more about the Desmos calculator.

Read TechCrunch's post about Desmos to learn more about the company and some of their plans for the future.

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. The one thing holding Desmos back is that it's Flash-based and not ready for the iPad yet.

Wednesday, January 19, 2011

Microsoft Mathematics 4.0 - A Scientific Calculator

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.

H/T to Center Networks.

Applications for Education
If you're in a Windows 1:1 environment Microsoft Mathematics 4.0 could be a good alternative to purchasing expensive graphing calculators that you have to keep track of (I've previously mentioned the problem my school has with TI-83's disappearing).

Thursday, January 6, 2011

Graph.tk - Online Graphing Utility

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.

Applications for Education
Graph.tk probably won't replace a TI-84 or similar graphing calculators, but it could be useful for doing some of the functions of those calculators. Like I mentioned in my post about the Web 2.0 Calculator, Graph.tk could be a resource for students who don't have access to graphing calculators outside of their classrooms.

Monday, October 26, 2009

Texas Instruments - Algebra & Geometry Webinars

Texas Instruments, makers of very popular graphing calculators, offers an extensive series of professional development programs. One such program is a series of free webinars about using their NSpire Math and Science Graphing Calculator products in the classroom.

Thanks to Tech Learning for the link to these webinars.

Applications for Education
If your school is using the NSpire Math and Science Graphing Calculatorproducts these webinars may provide you with some new ideas for teaching Algebra and Geometry.