Jot 10-Digit Scientific Calculators
My wife bought me one of these at Dollar Tree. I was shocked that a scientific calculator could be purchased for a dollar.
My wife is from a small village called San Isidro, on the island of Zumarraga, in Samar province in the Philippines. The community has a school, but it is a very poor burangay village. We purchased over 400 of these calculators to give every child in the school a calculator like this.
We also bought an extra 200 LR1130 batteries which this device uses, if you remove the 8 screws that secure the back case on, you will find that the batteries can be replaced (2 of the LR1130 batteries power the device). I read other reviews that stated that the batteries could not be replaced (they are incorrect). I tested every function on the calculator and the functions all work correctly. I still am amazed at the value of this device and know that it will be much appreciated by the students that will recieve them.
February 23, 2014
best purchase ever
This is a good product because my teach was giving me an f every time i did not bring in my calculator now i have one that is good
October 18, 2013
These calculators are simply fantastic. I only tried one of them so far, so, I am unsure how many of the 48 calculators I purchased work; however, the one I opened worked wonderfully. Here are the things I learned about the calculator after purchasing:
*Each calculator comes in a different color trim.
*Each calculator includes it's own small box, directions and a case.
*The calculators are battery operated (with no solar power option). It says on back that the battery is not replaceable, which means this is really a disposable product.
*There are statistical functions (can calculate the mean, standard deviation, generate random numbers, etc.)
*This calculator can convert numbers between bases (i.e. BIN, OCT, HEX, AND DEC).
*There is a pi button, nth root, reciprocal, 1/x, n!, ln and log, all basic trig functions, including arc and hyperbolic, etc. Basically, this calculator (for 1 dollar) does everything except graphing.
*The calculator's statistical features and data tables aren't intuitive to use (I had to read and reread the directions to figure out how to use it).
*No solar power option AND the battery is not replaceable. There is a warning on back that the battery contains mercury, which means the battery should be disposed of as hazardous waste or recycled. Overall, I would have to conclude that this product is not environmentally friendly.
October 6, 2013
Get What You Pay For
Give these calculators a try for a basic class set. Very low quality, but I wasn't expecting high quality. The buttons are soft and not really reactive. 4 out of the 24 calculators were non-functional right from the package. I opened the 4 to see if it was just a battery issue but it wasn't. There is no solid circuit board, all the electrical components are laid out on thin plastic. Scientific Calculator at a dollar a piece was worth a try, but I would not recommend this calculator.
September 18, 2013