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Far Out Math!

Far Out Math!. Using Slide Rules to Teach Logarithms. Lynn Cominsky SSU/NASA Education and Public Outreach Program Director Michiel Ford GLAST Educator Ambassador Holton High School, KS. National Aeronautics and Space Administration. Space. NASA ENTERPRISES. Education.

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Far Out Math!

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  1. Far Out Math! Using Slide Rules to Teach Logarithms Lynn Cominsky SSU/NASA Education and Public Outreach Program Director Michiel Ford GLAST Educator Ambassador Holton High School, KS

  2. National Aeronautics and Space Administration

  3. Space

  4. NASA ENTERPRISES Education Biological and Physical Research Aerospace Technology Mission Safety Human Exploration and Development of Space Earth Science Space Science

  5. Astronomy and Physics Division Infrared, Visible and Ultraviolet Radio, Microwave, X-ray, Gamma-ray, Gravity, Cosmic Rays

  6. Structure and Evolution of the Universe • To explain structure in the Universe and forecast our cosmic destiny; • To explore the cycles of matter and energy in the evolving Universe; • To examine the ultimate limits of gravity and energy in the Universe ranging from the closest stars to the most distant quasars.

  7. Structure and Evolution of the Universe Missions ACEHETE-2 ASTRO E2INTEGRAL ChandraLISA CHIPSMAP Constellation-XRXTE GALEXSWAS GLASTSwift Gravity Probe BXMM-Newton Not yet launched In orbit Hubble

  8. GLAST Science Explore the era of star formation in the universe, the physics of dark matter and the creation and evolution of galaxies

  9. All about GLAST http://glast.sonoma.edu

  10. Educator Ambassadors • 10 top-notch educators from nationwide search(5 GLAST, 2 Swift, 3 SEU) • Help develop, test and disseminate NASA E/PO materials • Travel to local, regional, and national conferences for workshops • $2500/year stipend + travel to a conference • 8 more slots in 2004 (5 GLAST, 3 LISA • and/or GALEX) • Do you have what it takes? Apply in ’04!

  11. TOPS Learning Systems • Develops simple, non-tech • activities • Non-profit run by • husband-and-wife team • Ron and Peg Marson • 20+ years of instructional • development experience http://www.topscience.org

  12. Far Out Math! • Uses slide rules (yes, slide • rules!) to teach • logarithms • Uses materials you • already have • Builds on previous • student knowledge

  13. 1615: John Napier & Henry Briggs needed to simplify HUGE calculations in Physics and Astronomy Why do we NEED to know where it comes from when my calculator does it for me? Logarithms

  14. log 10exp = exp N = 10exp = antilog exp Logarithms are Exponents

  15. Log rules: log(a) + log(b) = log(ab) log(a) - log(b) = log(a/b) log(ab) = b log(a)

  16. Sound Applications?

  17. Radioactive Decay Applications?

  18. pH Scale Applications?

  19. Compound Interest Applications?

  20. Population Growth Applications? + = kt N N e o because = + + ln N kt ln N o

  21. Richter Scale Applications? Richter’s Distance Correction Factor Modern Fudge Factor

  22. Even Motion Picture Flicker! fmin = min. frequency at which flicker disappears Applications?

  23. Time to get to work Let’s go logging!

  24. A) Sliding Scales Adding slide rules Multiplying slide rules B) Log Tape C) Base-Two Slide Rule D) Classic Log Scales E) Log Graphs TOPS: Far Out Math!

  25. Don’t forget the GLASToids… The curiously strong word problems (page 17)

  26. GLAST E/PO web site http://glast.sonoma.edu TOPS Far Out Math! http://www.topscience.org Logarithms through Applications by Robert Frank, Seton Hill College http://www.ma.iup.edu/MAA/proceedings/vol1/frank/frank.pdf University of Nevada, Reno Seismology class noteshttp://www.seismo.unr.edu/ftp/pub/louie/class/100/magnitude.html Resources

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