Resources

Texas Instruments STEM Behind Hollywood Update

Back the beginning of the school year, I reported on a new Texas Instruments initiative to create engaging classroom materials for the TI-Nspire. These modules brought out the mathematics and science behind popular Hollywood movies themes. TI calls the initiative “STEM Behind Hollywood.” Since I did the initial post about the first STEM Behind Hollywood module on Zombies, Texas Instruments has rolled out a couple of more modules. The first was “Earth Impact,” a scenario where students examine have to examine how scientists will attempt to change the trajectory of an asteroid on a collision course with earth.

Continue reading

Top 25 Free Math Resources

For the last few weeks, I’ve been scouring the web with Google, listening to reader suggestions, and searching through others’ lists of resources, trying to find the top free math resources online. I was not surprised to learn that there are a ton of free math resources out there. Sorting through them has been no small task, and while I’d love to pretend this list is all-inclusive, I’d be a liar if I tried to make that claim for a number of reasons.

Continue reading

Suggest Your Math Resources

UPDATE: My list of free math resources is now complete. I’m putting together a list of free math resources you can access online, and I’m inviting all Tech Powered Math readers to participate in making the list. I’m not sure yet if this will be a top 10, top 20, or even top 100 list. It’ll depend on how much participation I get from all of you. You can suggest resources to me in a variety of ways.

Continue reading

TI-Nspire Algebra Formulas Document

This TI-Nspire document has a number of formulas that are useful for algebra. In it you will find formulas for exponents, factoring, the equation of a line, and general formulas such as midpoint, distance, and slope. As with all TI-Nspire documents, it will work on any version of the calculator including TI-Nspire grayscale or CX and TI-Nspire CAS or non-CAS. If you find this document to be useful, be sure to like it on Facebook.

Continue reading

Desmos Free Online Graphing Calculator

There’s a new online graphing calculator out there that I think may soon top the National Library of Virtual Manipulative graphing calculator for top browser based grapher. There are tons of graphing calculators online, but frankly, most of them aren’t worth much. They’re either incapable of more sophisticated graphs, difficult to use, or just plain ugly. Startup Desmos has launched a graphing calculator that offers a lot of power and flexibility, as well as being simple to use.

Continue reading

NCTM Lessons on Casio Prizm

As I promised at my presentations at NCTM last week, I am posting the Word files for worksheets I handed out. I know not everyone who stopped by was able to pick up a copy, especially at the second presentation, because by then the crowds had really picked up. I really appreciate everyone who took the time to listen. If you are a teacher, feel free to use these handouts with your class.

Continue reading

TI-84 StudyCard app

Just wanted to write a quick post about the StudyCard app for the TI-83 plus and TI-84 plus. Got some inquiries about ACT and SAT StudyCards after I wrote The Top 6 TI-84 Plus Apps, and I wanted to talk a little bit more about the app. There are so many possibilities with the StudyCard app it could make your head spin. To review, the app basically turns your TI-84 into a virtual flash card computer.

Continue reading

Math Nspired update includes Algebra II, Calculus

Texas Instruments today announced a significant update for their Math Nspired website. If you’re not familiar with Math Nspired, it’s a resource site for the TI-Nspire, primarily for math teachers, but to a lesser extent for students. There are a variety of lessons, activities, and tutorials for teachers and students on the site. This latest update is a release of resources for Algebra II and Calculus classes. Previously, all of the lessons were for Algebra I and Geometry.

Continue reading

Kaplan’s free SAT and ACT question quizbank

UPDATE: Since this post, I’ve more posted a more recent review of Kaplan ACT & SAT Prep. When you’re prepping for the SAT or ACT, one of the best things you can do to improve your score is work on practice math problems. Kaplan is now providing a free tool for getting ACT or SAT practice problems online. Kaplan’s SAT Quizbank and ACT Quizbank allow students to get practice test problems with a lot of flexibility.

Continue reading

Great math problem tweeters

If you’re looking for some great math practice problems, Twitter can be one place to turn. It’s also convenient since you’re probably logging in to tweet on a regular basis anyway. Here are some “Tweeters” to consider if you’re looking for some extra practice or a challenge. Description: TheNational Council of Teachers of Mathematics tweets primarily high school level problems. Questions go out in the morning, answers at night. Example Problem: How many different rectangles can be drawn using the hour marks on a clock’s face as vertices?

Continue reading