Precalculus Websites
number gossip, everything you want to know about a particular number, great starter http://www.tanyakhovanova.com/Numbers/index.html
extension to the Dynagraph so that it includes more functions. includes the
16 functions on the Addison Wesley basic function list. The kids love trying to
figure out the function.
http://teachers.dadeschools.net/akoski/sketches.htm
Nice examples of transformations of functions, particularly composition of
functions (not working in July)
http://cs.jsu.edu/mcis/faculty/leathrum/Mathlets/
Guessing Correlations - a neat "game" to show the relationship between correlations and scatterplots http://www.stat.uiuc.edu/courses/stat100/java/GCApplet/GCAppletFrame.html
Drawing a Regression Line by "Eye”
http://www.ruf.rice.edu/%7Elane/stat_sim/reg_by_eye/index.html
Click the "Begin" box to bring up a scatterplot. Use your mouse to
draw a line on the scatterplot. The MSE error is computed (i.e.
"average" squared error). Check the minimum MSE and see how close you
can get. Click the box to see the least squares line. You can also guess and
check the correlation.
Unit Analysis, slow to load, but worth the wait
Virtual Manipulatives gr 6 – 8 Measurement, Converting Units
http://nlvm.usu.edu/en/nav/frames_asid_272_g_3_t_4.html?open=instructions
Cut out box problem
http://mathdemos.gcsu.edu/mathdemos/maxmin/buildamaxbox15.mov
Parabola w/ CBR, rolling ball up a ramp
http://mathdemos.gcsu.edu/mathdemos/parabolanew/parabola_main.html
Polynomial and Rational Graphs families
http://mathdemos.gcsu.edu/mathdemos/family_of_functions/polyrat_gallery.html
Optimization Fence Problem
http://mathdemos.gcsu.edu/maxmin/maxmin.html
Rational Graphs families
http://mathdemos.gcsu.edu/mathdemos/family_of_functions/polyrat_gallery.html
Digits of e
http://antwrp.gsfc.nasa.gov/htmltest/gifcity/e.2mil
Exponential and Log family of graphs
http://mathdemos.gcsu.edu/mathdemos/family_of_functions/explog_gallery.html
http://www.univie.ac.at/future.media/moe/galerie/fun2/fun2.html#graphenel
Logistics Spread of Disease Simulation
http://mathdemos.gcsu.edu/mathdemos/logistic/logistic.html
Generation of sine/cosine curves, unit circle unwrapping
http://mathdemos.gcsu.edu/mathdemos/sincos-demo1/
Matching trig (sin and cos) graphs with equations
http://www.univie.ac.at/future.media/moe/galerie/fun2/fun2.html#grapherk3
Trig graph families/Inverse Trig graphs
http://mathdemos.gcsu.edu/mathdemos/family_of_functions/trig_gallery.html
Transformation of Trig Graphs, also plays sound of graph, changing pitch and
amplitude!
http://cs.jsu.edu/mcis/faculty/leathrum/Mathlets/
Pitch, Tone, Frequency of sound
http://illuminations.nctm.org/ActivityDetail.aspx?ID=37
Sound waves
http://mathdemos.gcsu.edu/mathdemos/trigsounddemo/trigsounddemo.html
Modeling Daylight Hours
http://mathdemos.gcsu.edu/mathdemos/sinusoidapp/sinusoidapp.html
Simple Harmonic Motion – great visualization
http://www.equationplotter.com/shm/shm.htm
Graphs 3D functions of x and y
http://cs.jsu.edu/mcis/faculty/leathrum/Mathlets/
Completing the Square applet illustrates proof without words
http://illuminations.nctm.org/ActivityDetail.aspx?ID=122
Applet to complete the square (finds constant before perfect square), a not 1
http://www.ltcconline.net/greenl/java/BasicAlgebra/CompleteTheSquare/CompleteTheSquare.html
Bottomless worksheet for completing the square
http://mathforum.org/mathtools/tool/15771/
Applets to generate conic sections
http://www.ies.co.jp/math/java/
Catenary
http://mathdemos.gcsu.edu/mathdemos/catenary/catenary.html
Conic family of graphs
http://mathdemos.gcsu.edu/mathdemos/family_of_functions/conic_gallery.html
Graphing polar coordinates in degrees or radians, very intuitive
http://www.univie.ac.at/future.media/moe/galerie/zeich/zeich.html#polar
Polar graphs
http://mathdemos.gcsu.edu/mathdemos/family_of_functions/polar_gallery.html
Cycloids
http://mathdemos.gcsu.edu/mathdemos/cycloid-demo/
John and Betty's Journey into Complex Numbers
A Children's Book for Senior School Mathematics Students
http://mathforum.org/johnandbetty/
Tortoise and the Hare Race (Zeno’s Paradox)
http://www.shodor.org/interactivate/activities/tortoise/index.html
Tower of Hanoi
http://illuminations.nctm.org/ActivityDetail.aspx?ID=40
The On-Line Encyclopedia of Integer Sequences (look up a sequence)
http://www.research.att.com/~njas/sequences/
Mathematical Induction, list of examples
http://www.cut-the-knot.org/induction.shtml
PreCalculus study page on lots of topics
http://www.geocities.com/CapeCanaveral/Launchpad/2426/
All the applets I’ve looked at are great, some are included under specific
topics
http://www.math.dartmouth.edu/~klbooksite/all_applets.htm
interactive resources for functions and their graphs, includes matching
activities and function plotter, some are included under specific topics
http://www.univie.ac.at/future.media/moe/galerie.html
Resources>select a topic Lots of great links, well organized, British
http://michaelshepperd.tripod.com/
"Polyhedra Pastimes," a page of annotated links to 30 activities on
polyhedra chosen from a variety of Web sites:
http://britton.disted.camosun.bc.ca/jbpolyhedra.htm
One page mini-posters with applications of math (pdf format)
www.ams.org/mathmoments
Physics and Math in sports, ~15 min downloadable videos link sports with
physics, lesson plans available
http://sportsfigures.espn.com/sportsfigures