1 / 26

Calculators in Our Classrooms

Calculators in Our Classrooms. By Jennifer Holland. History of Calculators. William Seward Burroughs (1885) invented the first practical adding and listing machine William W. Hopkins (1901) invented the Standard (front-runner to the 10-key machine)

gil
Download Presentation

Calculators in Our Classrooms

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Calculators in Our Classrooms By Jennifer Holland

  2. History of Calculators William Seward Burroughs (1885) invented the first practical adding and listing machine William W. Hopkins (1901) invented the Standard (front-runner to the 10-key machine) Today’s 10-key design was introduced by Oscar J. Sundstrand in 1914 First handheld calculator designed by TI in 1966

  3. http://TI timeline

  4. History of TI Started by John CarenceKarcher and Eugene McDermott in early 1930 Firm incorporated as Geophysical Service, or GSI on May 16, 1930 1938—GSI begins efforts to separate oil interests from geophysical exploration 1945—Honored by Navy for contribution to war effort

  5. 1951—Name changed to Texas Instruments Incorporated; GSI becomes subsidiary Starts geophysics summer program for college students 1952—TI-GSI Foundation formed to support education and community 1952—TI enters semiconductor business with purchase of transistor license

  6. 1958—Jack Kilby invents integrated circuit 1961—First “Ethics in the Business of TI” booklet printed 1966—First mention of “software” in annual report 1956—GSI scholarship fund created

  7. 1959—TI donates semiconductors kits to colleges and universities; semiconductor department works with Lighthouse for the Blind 1969—Kilby awarded National Medial of Science in a ceremony in the East Room of the White House on February 16 1973—Eugene McDermott, founder of TI dies at age 74

  8. 1982—Jack Kilby inducted into National Inventor’s Hall of Fame 1990—TI Foundation funds model Head Start program 2000—Jack Kilby awarded Nobel Prize in physics

  9. TI Ethics—5th printing "We will not let the pursuit of sales, billings, or profits distort our ethical principles. We will always place integrity before shipping, before billings, before profits, before anything. If it comes down to a choice between making a desired profit and doing it right, we don't have a choice. We'll do it right. We must do it right, in every detail. Expedient compromises or short-cuts for near-term gains are not acceptable. --Jerry Junkins, Chairman, President, and CEO

  10. Number Munchers http://www.youtube.com/watch?v=CeMvJcfBDLM

  11. Elementary School Calculators

  12. Middle School Calculator

  13. High School Graphing Calculators

  14. TI-89 Titanium

  15. TI-92 Plus

  16. Voyage 200

  17. TI Connect Software Allows you to connect your calculator to your computer. Most often used to capture screens

  18. Exercise 1 1.) Graphing: Limacons, rose curves, circles and lemniscates

  19. Rose Curve

  20. Exercise 2 • 2.) Graph the piecewise function f= -x-2, x ≤ -1 x3, -1≤ x ≥1 1, x ≥1

  21. Exercise 2

  22. Exercise 2

  23. Exercise 3 A student wonders if tall women tend to date taller people than do short women. She measures herself, her sister, and the women in the adjoining dorm rooms. Then she measures the next person each woman dates and obtains these data on handout (in inches). • Based on a scatterplot, do you expect the correlation to be positive or negative? Near ±1 or not? • Find the correlation r between the heights of the women and their dates

  24. Exercise 3

  25. Discussion In what other contexts could calculators be used in our classrooms?

More Related