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Casio ClassPad 300 Touch-Screen Graphing Scientific Calculator
Manufacturer Description The ClassPad 300 uses an intuitive pull-down menu interface that simplifies even complex operations. Solutions, expressions, and other items can be selected with the tap of the stylus. The calculator supports drag and drop, copy and paste, and other pen-based operations that help minimize key operations. Versatile graphing tools for 3D graphing and drawing of geometric figures provide plenty of support for the math studies of students. The presentation application provides the teachers with tools for creating materials that promote student understanding of mathematical concepts and problem solving. The eActivity application creates eActivities that can include figures, expressions, and explanations. Included with this Product ClassPad 300 calculator, user's guide, warranty information Product Description The ClassPad 330 comes with all the functions of the ClassPad 300 including an impressive collection of applications that support self-study, like 3D Graphing, Geometry, eActivity for creating discovery based lessons and lots more. Additional features of the ClassPad 330 include upgraded CAS Technology and Geometry Application, new AP Statistics functionality, and three new applications Differential Equation Graph, Financial and Probability. Reader Reviews The LCD diplay on these units (I have purchased two, now, with the identical problem) is so bad that the units are essentially unusable. The LCD display contrast is very, very low. (it is hard to believe that the contrast is even 10:1? (a good LCD computer monitor is about 500:1)) Even under the best lighting conditions, carefully holding the instrument just so, etc. the units are hardly even readable. I have 1) replaced the batteries (both the batteries that came with the units and these replacement batteries tested fully charged) 2) carefully adjusted the contrast (being unusable is the BEST that I could get, any other contrast is hopelelly worse) 3) reset the unit, etc. After the problem with the first unit, I looked at the Amazon.com reviews and the reviews did not mention this problem. I therefore, reasonably, assumed that this first unit was defective and so I arranged to exchange it for another one. Unfortunately, the second unit's display is equally abominable so I assume that this very unfortunate defect is intrinsic to the product. Comment | | (Report this)
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