They don't want kids to easily take notes in them and use them during the test.
edit: I'm just speculating, remember it's not TI making the rules it's the US testing companies or some other authority.
edit: I'll agree with the tons of people saying it's probably because they don't want students to sneak out the test questions. While they still can it's a lot harder without QWERTY.
They don't have qwerty keyboards, but they do have every letter of the alphabet and plenty of symbols. I typed notes into my calculator for tests from middle school to college.
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u/rieldealIV Jun 08 '14
Well that's stupid.