Find where to buy the TI-84 Plus CE Python graphing calculator in a variety of bold, fun colors.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Learn about the math and science behind what students are into, from art to fashion and more.
Get ready for back to school with T³™ Webinars to enhance your teaching and TI technology skills.
We are here to help with distance learning resources for schools and districts.
Update OS, transfer files andtake screen captures for yourTI-Nspire™ CX II graphing calculator.
Students explore the key features of the parabola, both geometrically and algebraically.
In problem 1, students will use a sheet of paper to explore parabolas. They will start by marking a point on the center of the paper and producing a series of folds along one of the longer edges that pass through this point.
Tracing along these straight-line folds should produce an envelope of lines, and the locus formed by the paper folding gives and approximation of a parabola. Students may use Cabri® Jr. to do a similar exploration.
Students move on to fitting a parabola, they use the formula 4p(y - k) = (x - h)2 to assist them in their exploration.
At the end of this activity, students will be able to write and graph an equation of a parabola with vertex at (h, k) and axis of symmetry x = h or y = k. Students will also be able to derive the formula for any conic.
© Copyright 1995-2021 Texas Instruments Incorporated. All rights reserved.