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Math Teachers Chatboard

graphing calculators in algebra 1????

by stan

May 5, 2013

i was in a meeting. and the other teachers wanted to make ti84/83 a requirement for alg 1. i stated that i do not believe most schools use the graphing calculators in algebra 1. the other teachers thought i was crazy and that we were the only stone age school w/o using these expensive calculators in alg 1 class? what do you think?

view previous comments

LInsey We have used calculators, provided by the school, in high school math classes since about 1993. We are a small, rural school in Texas.

On 5/05/13, stan wrote: > i was in a meeting. and the other teachers wanted to make > ti84/83 a requirement for alg 1. i stated that i do not > believe most schools use the graphing calculators in...See More

May 7, 2013

LeighAnne and this is why students don't pass Algebra 2. Seriously! You have ZERO need for a calculator!!!

May 14, 2013

Linsey You are probably right, but our state end of course test in Algebra I REQUIRES that each student have a graphing calculator. The questions that are asked on it heavily emphasize the graphs. When the "experts" from the education service centers come in to help the students, it is all about how to use the calculators to get the answers. Not much choi...See More

May 15, 2013

Rich/CA/Math On 5/15/13, Linsey wrote: > You are probably right, but our state end of course test in Algebra > I REQUIRES that each student have a graphing calculator. The > questions that are asked on it heavily emphasize the graphs. When > the "experts" from the education service centers come in to help > the students, it is all about how to us...See More

May 15, 2013

MFN a math teacher complaining about how calculators are not helping students learn, I almost always see instruction that is procedural-oriented with computation as goal.

I would really like to see more of that small number of teachers who really do spend time continually expanding their mathematical understanding at least spend some of their...See Morea math teacher complaining about how calculators are not helping students learn, I almost always see instruction that is procedural-oriented with computation as goal.

I would really like to see more of that small number of teachers who really do spend time continually expanding their mathematical understanding at least spend some of their effort to go beyond their comfort zones in the use of computers to deepen student learning. (A so- called (electronic) calculator is a computer.)

If you use chalk, pencils, dry-erase markers, or interactive whiteboards, you are already using technology. At one time chalk boards were seen as threatening the authority of teeachers' knowledge. Are computers doing that now? With new theorems from HS students using Geometer's Sketchpad, will maybe future students learn more from them if they becoem teachers.

Why are today's teachers not growing their own food, making their own clothes, etc.? - times change. Technology has provided a easier way to get the job done. However, the results are a vast change in educations. One result was decisoon made a hundred years ago that now creates the issue that drives this thread - teaching algebra in HS.

There is a great need for both more and better mathematical preparation of our citizens. If you have a TI calculator and use to prepare students for the calculator-allowed portion of the AP test, do you discuss the epsilen factor in the derivative function and its implication in false results? Do you explain that the integation function is based on the Gauss-Kronrod method, and the role of tolerance parameter?

Why not?

I served in the military. On February 25, 1991, during the Gulf War, an American Patriot Missile battery in Saudi Arabia was protecting our troops. It's math came from its creators who learned much from their high school and college teachers.

This is based on the GAO report: Velocity is a real number that can be expressed as a whole number and a decimal (e.g., 3750.2563...miles per hour). Time is kept continuously by the system's internal clock in tenths of seconds but is expressed as a whole number (e.g., 32, 33, 34...). The Patriot system performs its calculations using registers that are 24 bits long and tracks time in 1/10 of a second. An error of 0.000000095 decimal per multiplication mounted to 0.34 seconds because the battery had be in operation continuosly for 100 hours. This resulted in the battery not launching a Patriot at a Scud missile that hit a barracks killing 28 soldiers and wounding 100 others.

We do not know what our students will do with the math that they learn from us, but we do know that math is in almost all aspects of our lives, sometimes it can return great benefit, but sometimes mistakes can result is tragedy. Teaching math can be fun, but it still carries a great responsibility - at least that's the way I see it.

, Some errors can should understand that responsibility that was ;y iteration resulted in The effect of differences in its multiplication 1/10 of a second and the true value mount this inaccuracy on the range gate's calculation is directly proportional to the target's velocity and the length of the the system has been running. Consequently, performing the conversion after the Patriot has been running continuously for extended periods causes the range gate to shift away from the center of the target, making it less likely that the target, in this case a Scud, will be successfully intercepted.

May 19, 2013

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