Geogebra - A Tool For All Math Teachers

I have been playing with Geogebra for several hours. It is a wonderful math applet that applies to algebra, geometry, precalculus, and calculus. The wonderful part about Geogebra is that no download is required to use the program. This means that Geogebra can be used anywhere there is an internet connection. There are some great resources on how to learn to use Geogebra within the geogebra wiki and at Math 247.


Geogebra Wiki contains some ready to use activities created by math teachers. Click on the topic that your class is studying and try one of them out. You do not have to be good at geogebra to use these activities. Most of them contain directions right on the activity so that they can be used by students with no knowledge of geogebra.

If you want a better understanding of how geogebra works and would like to create activities for your own class, start at Math 247. There are loads of instructional materials for the teacher, beginning witht the basics.



Do you remember working a problem in Pre-Cal or Calculus in which there is a boat offshore at point S and the occupant needs to get to point Q by a combination of rowing and walking? At what point R should the occupant land his boat in order to get to point Q in the least possible time? Students have a very difficult time with this one. Click on the following link for a great mathcast on the boat landing problem at math 247. The teacher takes you step by step through the problem, completely illustrated by geogebra. Not only is it a great solution, but you will pick up a lot of techniques to become more adept at geogebra.



Below is a very simple geogebra sketch of a parabola. Move the sliders to see the the effects on the graph of f(x) = ax^2+c when the values of a and c are changed. I plan to use this sketch in my algebra class when we begin quadratics.


I found other wonderful resources on Geogebra besides those mentioned above. See Kate Nowak's post on triangle centers and embedding a geogreba sketch into a blog. See Mr. L's Math on geogebra projects with parabolas.

Do you use Geogebra for demonstrations or do you have students construct sketches? Let me know in the comment section.

Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

Five Ways to Use Google Forms in the Classroom

Google Forms is such a useful tool. Listed below are all the different ways Google Forms can be used by the classroom teacher.

1. Use a Google Form to collect parent and student information such as email addresses, phone numbers, and other general information. The hardest part is deciding what information you want to collect. After that it just takes a few minutes to create the form. Once created, copy the link to the form and post it on your website. Keep in mind how parents and students might respond to each of your questions. For example, when you request a name, you might want to do two separate questions, one for the first name and one for the last name. Otherwise, you might not be able to easily sort alphabetically later.

2. Use a Google Form to collect links from student of projects they have done online. This makes it so easy for grading later. I have used a google form to collect the URLs for student created animotos, glogs, toondoos, and prezi presentations. This cuts down on printing and organizes all of my student work in one spreadsheet. I simply have to click through the spreadsheet for class presentations or for grading.

3. Use a Google Form to survey your students. Perhaps you would like to know who they would like to work with when you are about to change groups. Maybe you want their opinion on a certain activity.

4. Use a Google Form to give a quiz. Write a few questions, post the link to your website and ask students to take a quiz. Be sure to take the quiz first so that the first line of your spreadsheet contains the answers. If your quiz is multiple choice, make it self grading. Click here to see a screencast on how to create a quiz that is self grading. For more information on self grading quizzes, check out Wes Fryer's blog Moving at the Speed of Creativity.

5. Use a Google Form as a sign up sheet for various things. For example, my daughter's band director asks students what kind of sandwich they want before the game via a google form.

Create a Quiz at Mystudiyo

Want to create a quick quiz that your students can access online? It is pretty simple to do at at mystudiyo. All you have to do is sign up for an account, select the quiz style you want and type in your questions. You can also upload upload images to go with your questions. See below for a five question geometry quiz on right triangles. Some of the questions are pretty tricky. Try it out, responses are anonymous.

Let's Get Zesty With Prezi

Debbie and I are conducting a workshop on Prezi at the Sam Houston State Technology Conference on Saturday, October 23, 2009. Our presentation is in the form of a prezi and is embedded below. Included are snapshots and links of several student created Prezis. Prezi is a non-linear presentation tool that is so much better than PowerPoint. It can be used with virtually any subject at any grade level. We have found that students find prezis much more interesting to watch than traditional slide shows. They also feel that prezi presentations are both easy and fun to use. Both of us have had very positive experiences using Prezi with our students.


Conference participants please click on this link to share your Prezi with the group.

Technology In A Science Class

I wanted to share some ideas that I have used in both my Chemistry and Biology classes integrating technology with the WOW carts. To begin, I must tell you a little about me and my perspective with technology. I love using technology and learning new applications. I would spend hours working with various programs learning what they could offer me and my students. I wanted to share as much as I could with my students but was limited by computer availability and more importantly I was limited by my lack of imagination on how to implement the technology in a meaningful way in a science classroom. I have since been able to use certain Web 2.0 applications in my class to differentiate and support my students. In the beginning of the school year when we were reviewing safety in the science laboratory I assigned students to create a safety cartoon using ToonDoo. This was a modification on an existing assignment where the students would create paper safety cartoons.

Another program I have had success with is Wallwisher.
My biology students created walls of vocabulary terms for review of our cell unit. They were instructed to provide a description of the various organelles and include a picture for each term. I then borrowed Jill's great idea, I had the students submit a Google Form with their wall address to turn in the assignment. Because it timestamps the submission I was able to determine if the student was on time.

If you decide to use wallwisher make sure the students choose that anyone can view their wall but only they can add sticky notes. I would also suggest that you tell them not to overlap their sticky notes. They can extend below the viewable space on their page to add more. Make sure they stay within the width of the computer screen. This allowed me to print their virtual walls to post on my walls of our classroom. I

BookBox - Display Your Favorite Books

BookBox is an easy way to display covers of your favorite books in your blog or webpage. This might be a useful tool for teachers to advertise required reading. Students might use it to show the bookcover when writing book reports for their classroom blog or wiki.

BookBox is very simple to use. All it requires is the title, author, or ISBN number of the desired book. I entered four of my favorite titles for my classroom reading, created a password, and clicked on save and embed. The site generated an embed code for me to copy and paste onto my blog.

My BookBox is located below. If you click on one of the books, it will take you to its Amazon page. This might be convenient in that it gives the student or parent more information on the book as well as pricing information. It is also good for Amazon. The creator of the site indicated that plans were in place to offer additional book stores in the future.

LIve Binder - An Online Notebook for Teachers and Students

Like most teachers my lesson plans are located in a three-ring binder. I have hard copies of any electronic documents, presentations and notes located in this binder. I also have a flash drive that contains all of my electronic items. Bookmarks of relevant sites to my curriculum are saved in Google Bookmarks as favorites. I have always wished that I could keep all of these nice and organized in one place. Live Binder is the answer to this wish.

Live Binder allows you to add text, upload files, and upload links to an online notebook. There are options to share the notebook by email or by embedding it on a blog or webpage. I found it to be pretty easy to create a notebook. It took me a while to gather all of my materials that I wanted to place in the book. The sample notebook that I created below is an AP Statistics unit that is a work in progress. I can easily update it with new items or remove outdated items that I no longer need. The link will always find the most current version.

Live Binder is still in beta and I hope that they add a few more features. I would like to be able to copy and paste pictures from my computer to illustrate some of my lessons. Pictures can be uploaded, but won't appear until they are dowloaded. Currently, pictures from Flicker can be added to illustrate the text. I would also like for there to be an option to turn my documents into ipaper. I could have gotten around this by uploading my documents to Scribd then uploading that link to my Binder. However, I was in a hurry and did not take the time to do this.

I see LiveBinder as a valuable tool for teachers. They can use it for personal use to keep track of their lesson plans as I did in my sample. A department could also display common items to all teachers to embed in their webpage for students and parents to access. The science teachers at McCullough Junior High School have created a Live Binder for their common science forms, links, and assignments. It is located at www.livebinders.com/edit?id=2440 This binder is private and requires an access code. The access code was given to students and is on the science teachers' websites. However, I will not list it here to maintain their privacy. It is nice to have the privacy option available for the content in Live Binder. My sample is public so that you can view it. There are also several other public notebooks at the Live Binder site. Hopefully, you will find this application useful for your classroom.

AP Statistics - Planning a Study

Presentation Tools - Technology Session IV

A collaboration between Jill Malpass and Debbie Shepard

Before we begin please access the presentation tools wiki by clicking here. This page includes other types of presentation tools that you may find interesting and want to learn more about on your own or later this year.

Five Helpful Tools for the Math Classroom

I am always on the lookout for really cool internet applications that I can use in math. If you know of others, please comment.

Equation Editor

You might notice that I have added an equation editor to the sidebar of my blog. Click on the format of the equation needed, make a few modifications and you have a very nice looking math equation. Normally, I use MathType on my own computer with MS Word. However, MathType is not free and not available in the cloud. Thus, when working on internet based computers, other options have to be utilized. I wouldn't want to have to type a whole worksheet using this gadget, but it isn't bad for one or two equations to use in a presentation.

Flash Cards

I am a big fan of Quizlet for vocabulary flash cards. I previously wrote about quizlet here. Quizlet is great for learning vocabulary. It is wonderful for differentiating instruction with minimal effort on the part of the teacher. This summer students in a PSAT Prep class typed in 16 word lists with definitions of 25 words each in under an hour. Afterward, they were instructed to concentrate on learning the first list. It was fun to watch students make their choice on how to learn. Some of them reviewed the flash cards electronically. Many of them played one of the two games available on quizlet. Several others practiced the words by taking a quizlet generated test. A few chose to learn the old fashioned way by creating index cards for their words or by studying the list on paper.

Students often are required to memorize many formulas in math as well as trigonometric identities. I wasn't able to figure out how to get quizlet to handle a math formula. Then I discovered another flashcard application called Cobo Cards that uses Tex to make beautiful flash cards with equations. Once I learned how to copy and paste the Tex commands into Cobo Cards, writing equations was a breeze. Click here to see my set of trigonometric identity cards.

Graphs

Math teachers use many graphs on their tests and worksheets. Students, too, need to be able to use internet based graphing options if they are to create presentations. My twitter friend @JackieB introduced me to Graphsketch shown at the left.



Another option for creating graphs would be to utilize the computational knowledge engine at WolframAlpha. I typed in an expression, then used Photo Filtre to copy it and save as a jpeg. It does not have the grid lines like graphsketch, but it is very well done.




Animoto

I found the animoto embedded below at http://teachingcollegemath.com/?p=654. I thought it was great and plan to show it to my students once school starts. Hopefully, this will help them understand the concept of a function. Another use for math animotos might be to illustrate a theorem or develop a proof in geometry. Students could create an animoto illustrating the steps of solving an equation. The site mentioned above describes the method for creating the function animoto using PowerPoint slides. I think Google Doc Presentation slides could easily be substituted. Each slide would need to be saved as a jpeg and uploaded to animoto.






Games

One of the best sites for math games is coolmath.com. Here you will find all kinds of games for all levels, elementary to secondary. The games are interactive and just plain fun. Be prepared to lose a few hours while exploring this site.

I hope that you will find these tools useful as well. Please leave me a comment regarding your favorite internet math tool.