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Topic: TI-89
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John E. Harrison

Posts: 60
Registered: 12/6/04
Posted: Jul 22, 1998 10:15 AM
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My opinion regarding the TI-89:
Good, and it's about time, and WHY doesn't it include the geometry package
from the TI-92 and ***WHY*** doesn't it include the statistical package
from the TI-83???

I can forgive TI for not including the Cabri geometry - their stated market
is college engineers. BUT, not to include the statistical package is
insane, and I told their reps that at NCTM and at a later workshop given by
my school district. I have students who take both the AP stats and the
calculus (I teach both). Which machine do they buy? The downloaded stats
package from the TI website - also required for the TI-86 - is inferior to
the 83 built-in version. However, the CAS and differential equation
capabilites of the 89 can't be matched by the 83. <sigh>

HP has already had a CAS calculator approved for the exam. But, as is true
with all technology, if you don't *understand* the mathmatics, then all
you're doing is punching buttons. One of students two years ago showed me
his HP and its CAS. He still got a 1 on the exam.

Mary Harrison
Salem High School
Va. Beach, Va.

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