UPDATE: CONGRATULATIONS TO JOE, SENIOR AT MORTON HIGH SCHOOL, THE WINNER OF OUR FREE CALCULATOR CONTEST! It’s no secret from our recent review of the TI-30 series that TPM feels the best entry level calculator Texas Instruments has on the market is the TI-30 X Multiview. Now, we’re going to send one student head back to school with a free Multiview. Sometime between now and Labor Day, why not enter our contest?
UPDATE (7/27/11): After hearing nothing for a year, Canon has announced they will release the Cannon X Mark 1 Calculator Mouse in August 2011. Buy the X Mark on Canon.com. The gadget world was all a twitter over the weekend as Canon announced the creation of the X Mark I, a combination mouse-calculator-numeric keypad. This bluetooth mouse features large, PC sized buttons. With all the gadget gurus falling all over themselves to report the excitement of this new device (Engadget called it “magical”), apparently no one is asking, “Haven’t we been here before?
This video lesson covers and introduction to graphing on the TI-Nspire. Inputting equations, tracing functions, and adjusting the graph window, and using zoom features are all explained as well as find a maximum, minimum, or x-intercept.
This video lesson covers and introduction to graphing on the TI-84+. Inputting equations, tracing functions, and adjusting the graph window, and using zoom features are all explained.
Open SciCal Earlier this week, Matt Stack made headlines when he announced he had created an entirely open source software and hardware graphing graphing calculator. For those unfamiliar with the concept, “open source” means that the programmers who write the computer code make it public for anyone to tweak, improve, or customize. This differs greatly from commercial software efforts where code is a carefully guarded secret. The news of Matt’s creation, Open SciCal, was quickly picked up and reported on by Wired and Gizmodo among others.
Click here for our in-depth written review of the TI-89 tianium vs. TI-Nspire CAS.
Click here for my video of NLVM’s free online graphing calculator. It’s easy to find interactive graphing calculators websites, but finding a free, easy to use graphing calculator applet that’s not buggy is more of a challenge. One of the best is hosted at Utah State University’s NLVM site, the National Library of Virtual Manipulatives. If you’re not familiar with it, NLVM is an extensive collection of interactive applets for students and teachers.
Click here to read our article on NLVM’s free online graphing calculator. In addition to our article, we wanted to bring you a video demonstration of the grapher.
Click here for my in depth written TI-84+ vs. TI-Nspire buying guide.
Imaginary numbers can be a source of confusion when they are first introduced to a student, but they don’t have to be. Basically, we are trying to deal with the problem of the square root of a negative number. When we take the square root of negative one, the number is called i. This video lesson includes a brief explanation of complex numbers and a tutorial on how to use your TI-84+ to do calculations involving complex numbers.
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