Online Tutorials

Using Geogebra to Explore the Triangle Inequality

Anyone who has taught math has struggled with letting students explore the triangle inequality, and then watched as the students LITERALLY struggled with string, or yarn, or paper and rulers. Jerry Bunch has created a fun, easy-to-use Geogebra file for you to use or modify. To download the file, first go to www.geogebra.org and install the software, then download the triangle file. Or, click on the html link to run it interactively in a web browser. Let us know how it goes, or contact us to offer suggestions.

Download the Triangle Inequality file

Use the interactive web file

Helping Students Use Excel to Chart Data

Do you want your students to work with data but don't really have time to teach them how to set up a spreadsheet? Jerry Bunch made this file for busy teachers, or those with students too young or inexperienced to work in Excel. It has three tabs, one for bar graphs, one for lines, and one for pie charts. The table is already set up so the data will be displayed on the chart as it is entered. You can type the experiment instructions in the text box, and have your students replace the Student names with their own. Older students can add experiment notes. Just place the file in a common folder for your class, have the students follow the experiment instructions, then each group can save the file for your review.

Click here and save the file, then set it up to suit your classroom needs. Let us know how it works for you and if you have any suggestions or enhancements!

YouTube Tutorials
This is a two-part tutorial created by Mary Parrish that gives step-by-step instructions on how to download a video from YouTube, convert it, and play it on Windows Media Player. YouTube is usually blocked on school networks, so this is a way to download the "GOOD" YouTube videos at home and bring them to the classroom. The two programs that you will need to download are completely free and legal for your use, and they do not contain any spyware that will clog up your computer registry.

How to Download YouTube Videos Part 1
How to Download YouTube Videos Part 2

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Create a Secret Revealer in Promethean v3
This is a short tutorial created by Mary Parrish that shows you a very simple way to create a secret revealer that your students will love. The secret revealer magically looks through a picture to see another picture hidden behind it. Make your lessons more engaging for your students using this tool.

The first link opens in Windows Explorer, and the second link is a stand-alone program. Either can be saved to your computer.

Create a Secret Revealer

Create a Secret Revealer (Click and select the Save option.)

Slices and Shadows Tutorials
Slices and Shadows, Unit 7 of the Georgia Performance Standards Frameworks for 7th Grade Math, addresses the geometry of 3-dimensional objects, specifically by using 2-dimensional plane figures. In this unit, the students create 3-dimensional objects by transformations of 2-dimensional plane figures. The students also explore 2-dimensional cross-sections of cylinders, cones, pyramids, and prisms.

Google Sketchup, a program free for downloading, is an invaluable instruction and assessment tool for teachers. These tutorials, designed to assist math teachers, were created by Jerry Bunch at the Macon State College ETC.

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