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

Friday, May 22, 2015

Silk Offers Great Tools for Creating Data Visualizations

Silk is a free tool that I first tried a couple of years ago when it was primarily a digital portfolio and simple web page creation tool. Since then it has evolved to include some fantastic tools for creating and sharing data visualizations.

To create a visualization on Silk you can upload data in a spreadsheet, manually enter data, or use one of data sets that Silk provides in their gallery. Once you've uploaded data or selected it you can use it to create fourteen different visualizations. To create a different visualization of the same data set simply choose a different visualization style from the Silk menu. See my screenshot below for further explanation.
Click to view full size.

Silk visualizations can be made public or kept private. If you keep your visualizations private you can still share them directly to other Silk members by inviting them to your project. Public visualizations can be embedded into blog posts as I have done below.

H/T to The Next Web for the update on Silk.

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. is a free online graphing utility that is also available in the Google Chrome Web allows you to plot multiple functions through its dynamically re-sizing grid. To graph an equation on just click the "+" symbol to enter a new equation. One thing that isn't clear the first time you use 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 could be good alternatives to trying to keep track of TI-84's or other graphing calculators.

Tuesday, September 18, 2012

One Click Chart Editing in Google Spreadsheets

If you make charts in Google Spreadsheets you'll be happy to learn that yesterday Google introduced one click chart editing. To edit a part of your chart you just click on the element you want to change to the editing menu. You can also now drag the edges of your charts to resize them. Click here to read more about the new Google Spreadsheets chart editing options.

Thursday, February 9, 2012 - Create Interactive Charts and Infographics is an online tool for creating interactive charts and graphs. Soon you will be able to create interactive infographic posters on too.

There are four basic chart types that you can create on; bar, pie, line, and matrix. Each chart type can be edited to use any spreadsheet information that you want to upload to your account. The information in that spreadsheet will be displayed in your customized chart. When you place your cursor over your completed chart the spreadsheet information will appear in small pop-up window. Your charts can be embedded into your blog, website, or wiki. I've embedded a sample below.

Applications for Education
The only drawback to for student use is that they must have a Twitter or Facebook account to sign into Otherwise, could be a great tool for students to use to create displays of data that they have gathered. I signed up for the beta of the infographic service and am looking forward to trying that out too.

H/T to TechCrunch for the beta info about 

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 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 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.

Monday, September 20, 2010

Gapminder - Graphing the World's Data

Graphs of data sets on their own can be useful for understanding the causes and ramifications of many types of economic, social, politica, and scientific problems. Interactive graphing tools can make it easier to explore data sets related to those problems. That is the purpose of the graphing tool Gapminder. Gapminder gives users the ability to create graphs of nearly 500 demographic and economic indicators. Tekzilla Daily has a video demonstration of Gapminder in action. Watch the video below.

The TED Talk below features Gapminder's founder Hans Rosling using Gapminder.

Applications for Education
Gapminder has a page for educators on which they can find thematic animations, graphs, quizzes, a lesson plan, and a PDF guide to using Gapminder. For teachers working in schools with slow Internet connections or very strict filtering, Gapminder has a desktop application that you can download and install for Mac or Windows computers.

Gapminder is a good tool for visual learners to see data in a way that changes the data from numbers to bubbles for easy comparison.

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.

Monday, September 7, 2009

Chart Go - Quickly Create Charts and Graphs

Chart Go is a free service that allows users to quickly and easily create pie charts, area charts, bar graphs, and line graphs. Chart Go does not require any registration to use the service. To create your chart just select the chart style and chart dimensions. Then enter your y-axis and z-axis data. Chart Go generates your chart based on your specifications and data input. When your chart is done, you can save a copy to your computer or share it via a unique url assigned by Chart Go. My sample chart is pictured below. In my sample I did not include a title or a key, but those options are available.

Applications for Education
Chart Go could be a good tool for students to use when they need to make charts for presentations.

Here are some related items that may be of interest to you:
Widgenie - Quickly Create Charts Out of Spreadsheets
Need Graph Paper? Get it Here

Saturday, July 11, 2009

Need Graph Paper? Get it Here

Every mathematics teacher I know needs graph paper. If you're a mathematics teacher and find yourself running short on graph paper or you need a graph paper that is different from what your school purchases, try one of these three places for printing graph paper.

Incompetech offers more than forty different graph and lined paper templates. The offerings from Incompetech even includes sheet music ledger.

Print Free Graph Paper offers eight graph paper formats. Print Free Graph Paper allows you to customize the size of the graph before printing.

Math Drills hosts fourteen templates for printing your own graph paper. The templates are in metric and imperial measurements.

Monday, June 15, 2009

Widgenie - Quickly Create Charts Out of Spreadsheets

If you or your students do any work with data sets and spreadsheets you should take a look at Widgenie. Widgenie provides a set of tools that allows you to easily take data from a spreadsheet and turn it into bar charts, pie charts, line charts, area charts, and tabular charts. You can import data from Excel spreadsheets, Google spreadsheets, or any CSV file. If you just want to test out Widgenie you can use their sample data sets.

Applications for Education
Widgenie could be a good tool for students who need to make visual representations of data that they have collected. Students can share their Widgenie charts in your classroom blog, wiki, or use them as visual aids in oral presentations.

Here are some related resources that may be of interest to you:
iCharts - Create Interactive Charts Online
Flashcards and Word Searches Using Google Spreadsheets

Wednesday, May 20, 2009

NCES Kids' Zone

The National Center for Education Statistics hosts a collection of games and tools for students. On the NCES Kids' Zone students will find information about public and private schools as well information designed to help them choose a college.

The Kids' Zone's real value lies in the games, quizzes, and learning tutorials featured on the site. Dare to Compare is a quiz section of Kids' Zone where students can test their knowledge of civics, economics, history, geography, mathematics, and science. After taking each quiz the students are shown the correct answers. Dare to Compare also allows students to see the national and international average rate of correct answers.

I was prompted to write about Kids' Zone by a Tweet from Larry Linebaugh about the Create a Graph tool on Kids' Zone. Create a Graph provides students with five graphing tools and tutorials. The tutorials can be viewed online or downloaded in pdf format for printing.

Applications for Education
The NCES Kids' Zone is a good place to find quizzes and activities that students can use for independent study and practice. Create a Graph can be used to create simple graphs for most content areas. If you're looking for some educational time-fillers for those times when you finish your lesson plan early and have a few spare minutes, check out the Kids' Zone Grab Bag for brain teasers.

Here are some related resources that may be of interest to you:
The Math Arcade on Fun Brain
Brain Bashers - Puzzles and Brain Teasers
Play the Cash Cab Quizzes

Sunday, April 5, 2009

A Great Collection of K-8 Math Resources

Math Graphing is a part of a larger compilation of K-8 resources assembled by the Jefferson County Schools of Jefferson County, Tennessee. The Jefferson County Schools have hundreds of links for K-8 math, science, social studies, and language arts. I came across this great resource while looking for an interactive graphing activity. I found the activity I was looking for, but of more value is the Math Graphing collection of links from Jefferson County Schools.

Math Graphing has links to 45 interactive graphing activities appropriate for elementary school and middle school use. If you're looking for other mathematics activities, check out the Jefferson County Schools' general math page. The general math page is divided into fourteen categories including fractions, flashcards, integers, telling time, algebra, and geometry.

A related resource that you may want to visit is my list of math links you might have missed.

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