Florida [Casio] Calculators Give Wrong Answers
Posted by Nick on 27 February 2000, 00:17 GMT
There is an interesting article in the Washington Post regarding the State of Florida's achievement tests. Apparently, the state issued their own (Casio) calculators for a standardized test and students were prohibited from using their own. Entering data too fast (such as 3 times 3 times 3) yielded wrong answers (such as 81). Check it out - it's quite humorous. :)
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I took that test
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Grant Elliott
(Web Page)
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I'd like to represent the people who took that test. First, I'd like to say that the FCAT is a waste of students' time. The test is not, in fact, standardized. The 8 different forms are not just in a different order - they are completely different questions! Hence, two scores are really not fairly comparable.
The test is very easy anyway. The 10th grade test contains no more than basic Algebra I and a little Geometry. Parts are actually insulting. Plus, 80 minutes are given for a test which should take 30. The hardest part about the test is figuring out what the questions actually mean, as most of them are extremely vague and poorly written.
Now for the part about the calculators. First of all, they don't even bother standardizing that. Two different calculators were used - only one of which didn't work. (My school used the ones that worked.) They are lousy five functions anyway. Honestly, you don't need a calculator on this test. All they help with are big multiplication and division problems - but more than enough time is given to do them by hand.
The problem with the calculators was that they gave wrong answers when a repeated operation was typed rapidly. The first number was used twice. For example: 2 * 7 * 3 yielded 84 instead of 42 : )
Obviously, on a problem like that, any student should notice the error. However, for a problem like 2 * 33 * 21, a student may not notice that the answer is twice what it should be. (Try throwing in a decimal or two.) Keep in mind this is a timed test. Besides, the most a student would probably do is type it in again, get the answer again, and assume he was mistaken and the calculator was right.
It gets better. For some stupid reason, the state of Florida has decided that absolutely everything relies on this one stupid test. School funding is divided according to average scores on the FCAT. A student can and will be removed from most magnet programs if he fails the FCAT. The list goes on...
And the plot still thickens. The blockheads in the state board of educators claimed that the test is still valid. According to them, the students all should have noticed the error. Why, then, didn't the board or the test writers notice? Students are given these calculators with the assumption that they work. They did not and the board didn't want to admit fault.
I learned this morning that the board may back down. In which case, we all get to miss another day of school to take it. This is all truly a waste of time that could easily have been avoided by taking one hour to have some teachers take the test ahead of time. Who knows? Maybe some of the typos and vague questions would have disappeared too. In light of what happened, the only fair solution is to do a full retest.
In a sad way, this is all really for the best. Hopefully, someone will realize that so much weight shouldn't be put on one meaningless test so easily invalidated.
I thank you all for reading this. As funny as it may seem, a lot rides on this. The test itself is meaningless and maybe this will go to prove it. Those of you who still take standardized tests that mean something, enjoy it while you can...
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27 February 2000, 01:20 GMT
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Virginia, too
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EvanMath
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We have SOL's ([very low] Standards of [what there is no reason to be] Learning), and, like in Florida, there is just this one test. Also, like it apparently is in Florida, this test is incredibly easy (however, 40+% of kids still manage to fail, somehow). One lesson in Algebra: "How to solve equations of the form x + b = c". The next day: "How to solve equations of the form ax = c". Then, finally, on the third day: "How to solve equations of the form ax + b = c". Remember, you have to learn stuff you should have already learned very slowly, one step at a time.
And the history stuff is pointless: one question that only exaggerates a little bit: "What was Andrew Jackson's secretary's wife's maiden name?"
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27 February 2000, 21:08 GMT
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Re: Don't take it to harshly.
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ASimPerson
(Web Page)
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Man, you guys think you have it bad......imagine living here in Alabama, whose education spending 3rd to last in the nation (ahead of South Carolina and Mississippi).
We take the SAT (Standford Achievement Test, 9th edition). It tests in various categores, and they give us the OLSAT to measure our 'ability'.
There are two math portions, but calculators are not allowed on the portion on which it'd be worth using a calc, so it's not really an issue.
Of course, the state just made a new exit exam (the old one was on the 8th grade level). I don't really feel like explaining, 'cept my class (class of 2003) I think has to pass the entire test, which is made up of five parts....anywho..
ASimPerson---thinks he's rambled on enough
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29 February 2000, 00:49 GMT
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TI Math Explorer Bug!
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DWedit
(Web Page)
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(Well, this IS related to TI calcs!)
If you start with 2 ^ 2 and keep raising it to the power of 2, (not with the squared key), it will eventually display 65535.999, which any ASM programmer will tell you is incorrect.
BONUS WEBSITE: http://195.67.128.26/
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27 February 2000, 01:37 GMT
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Re: Florida [Casio] Calculators Give Wrong Answers
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Reno
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is anybody surprised by the fact that they are Casios? :P
Not all TI calcs are bug free, but at least they aren't as dumb as that
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27 February 2000, 02:46 GMT
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Re: Florida [Casio] Calculators Give Wrong Answers
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barich
(Web Page)
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I have an old solar powered Casio calculator is in my desk collecting dust. I pulled it out and tryed 2*2*2 quickly and got 81! Is it possible that all Casio calculators have processors so slow they can not keep up with keypad input? Maybe it is.
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27 February 2000, 03:26 GMT
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