Texas Instruments TI-84 Plus Graphing Calculator Reviews
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Texas Instruments TI-84 Plus Graphing Calculator

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My Best Friend in High School

Feb 11, 2010
Review by  
Rated a Very Helpful Review
  • User Rating: Excellent

  • Ease of Use:

Pros:Fast, Small, Reliable, Many Uses, GAMES

Cons:USB Connection isn't too great, nonetheless, calculator works perfectly

The Bottom Line:

If in advanced mathematics courses or science, I highly recommend it as it becomes useful for calculating advanced equations and derivatives/antiderivatives.


When I was in middle school, I always wanted a TI-84 Plus simply to feel superior to the other students who were using the basic TI-20X scientific calculators. In High School, I finally had my chance to reason with my parents to buy me a graphing calculator (apprx $100- new) for my Statistics AP course. Although I strictly bought it for Stats, it was also very helpful in pre-Calculus where I could see all the trig functions right in front of me and see how adding numbers to parent graphs affected the graph. I am now a Junior, and this calculator has never failed me. Simply knowing how the calculator works made many problems easier for me.

For Stats, the calculator is especially helpful as you can create data tables on your calculator and this perform various statistical tests on it. In addition to this, you can graph boxplots, histograms, and scatterplots of the data. Everything you learn in AP Statistics can be done on your calculator. In Calculus AB and BC, the calculator isn't used as frequently as you start dealing with more variables and certain derivative and integration rules and techniques. However, for problems involving graphs, the calculator is incredibly helpful as you can find out where y-values are in relation to the x axis whether it's the original graph, first derivative, or second derivative. But, remember that learning how everything works is essential and not just learning how to do it on your calculator.

As well as school work, the calculator is also permitted on most state tests and the SAT. Having a calculator is almost completely necessary in some sections where attempting it by hand is time consuming and asking for simple mistakes. Another advantage of the TI is that you can see your previous equation entries simply by looking on your screen (it can fit 3 different equations including answers).

The TI-84 Plus has many functions related to Finance, Statistics, Calculus, and Arithmetic. In addition, you can create your own programs whether it is for mathematic formulas or games! Math Class can be a boring class somedays, so having a nice variety of games on your calculator can help pass the time. Remember, this a calculator so the games are relatively simple.

Another Use of the PRGM Button
Ideally this button is used for creating programs for the calculator. However, this can also be used as a word document type thing where you can save text which is helpful for "memorizing" formulas and such. The calculator has an "Alpha" button that when a button is now pressed, it correlates to the green letter just above the button. Here, you have the entire Alphabet. In case you were wondering what the actual purpose of the "Alpha" key is, it's for storing numbers into variables. This is especially helpful in science classes where you encounter a lot of constant values used for formulas.

The Calculator also comes with a USB connection cord which can be used for downloading programs or applications from your computer. On TI's website, a wide variety of helpful programs and games can be found.

The battery life of the TI is very long and a new change would probably be needed every 6months to a year depending on how much you use it, of course.

The calculator is very easily portable and is slightly similar to a pencil bag in size. It comes with a screen/key protector case. Use this after every use, I didn't once and it resulted in a black blob in the middle of my screen.

This tool is probably the number one helpful item for getting through high school. The TI has never failed me, and once you learn how all the functions work, it doesn't seem as complexed as it looks and only serves of a mean to help.


Recommend this product? Yes


Purchase Price: 100


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