Best of the Best

Online Math Resources

Studyworks! Online: Interactive Geometry
http://www.studyworksonline.com/cda/explorations/main/0,,NAV2-21,00.html
Observe some fundamental principles of geometry. Applet activities include: how to trisect an angle, finding the sum of the angles in a triangle, conservation of area, congruence of corresponding angles, parallel lines, and the Pythagorean theorem.

GeoJava
http://www.ies.co.jp/math/java/geo/
This series of applets explores Angles and Parallel Lines; Congruent Figures and Triangles; Quadrilaterals and Conservation of Area; Similar Figures; Circles; and the Pythagorean theorem.

Pythagorean Puzzle
http://www.pbs.org/wgbh/nova/proof/puzzle/
This interactive proof of the Pythagorean theorem comes from the PBS Nova Web site. You'll need the Shockwave plug-in.

Euclid's Elements
http://aleph0.clarku.edu/~djoyce/java/elements/elements.html
Discover how Java applets are used to illustrate Euclid's principles.

Polygon Angle Applet
http://www.mste.uiuc.edu/exner/java.f/angleobject/
Draw polygons and tally up the measures of their angles with this applet.

The Math Archives

http://archives.math.utk.edu

Tutorials and resources for all levels and types of math

National Library of Manipulatives for Mathematics

http://matti.usu.edu/nlvm/nav/index.html

Cube Net

http://www.pleasanton.k12.ca.us/pleasanton/MathWeb/Grade7/2DGeo/CubeNets.html

Three-Dimensional Solids

http://www.cs.mcgill.ca/~sqrt/unfold/unfolding.html

Activities for Visualizing Solids

http://www.learner.org/teacherslab/math/geometry/space/index.html

NrichMath

http://www.nrich.maths.org/public/index.php

Calculus-Help.com

Cool Math

Math Quotations http://math.furman.edu/~mwoodard/mquot.html

Figure This Math http://www.figurethis.org/

Math problems and games http://www.nrich.maths.org/public/index.php

PI Day http://mathforum.org/t2t/faq/faq.pi.html

 Jobs in Math and Science  http://www.thefutureschannel.com/

Algebra for Athletes http://algebraforathletes.com/

Fraction WebQuest  http://otis.district87.org/staff/powelln/Eureka/Fender/fraction_webquest.html

Analysis and Probability Manipulatives http://matti.usu.edu/nlvm/nav/topic_t_5.html

Purple Math Algebra http://www.purplemath.com/

Interactive math 9-12 http://www.mathblues.com/

Absurd Math http://www.learningwave.com/abmath

Manipula Math with Java http://www.ies.co.jp/math/java/10 Best Practices in Mathematics Instruction
http://jeffcoweb.jeffco.k12.co.us/isu/math/instruction/ers.htm
Jefferson County Public Schools in Colorado provides this short list of attributes adapted from Improving Student Achievement in Mathematics.

Best Practice in Mathematics: Using Test Results to Inform Instruction and Improve Student Achievement
http://www.enc.org/features/focus/archive/data/document.shtm?input=FOC-003036-index
"An assessment consultant advises teachers on how they can ensure that data from standardized tests will inform their instruction and classroom assessments."

Curious and Useful Math
http://www.curiousmath.com/
This site is loaded with tricks and rules for quickly calculating certain types of math problems. There are also some entertaining trivia and math facts. Ask a question or participate in the online forum.

PBS Mathline
http://www.pbs.org/teachersource/math.htm
To view lesson plans and activities, select a grade range and topic. Teachers can get quick access to their most relevant content for subject, grade level, and location by personalizing this site.

Line Jumper: http://www.funbrain.com/linejump/index.html 

Number Line Bounce: http://nlvm.usu.edu/en/nav/frames_asid_107_g_3_t_1.html 

Number Line Applet: http://www.neirtec.org/activities/applets/numberline.htm 

Color Chips: Addition http://nlvm.usu.edu/en/nav/frames_asid_161_g_1_t_1.html 

Color Chips: Subtraction http://nlvm.usu.edu/en/nav/frames_asid_162_g_3_t_1.html 

Adding Integers:http://students.washington.edu/smithr3/integers/learning.html 

Practice Your Arithmetic Skills:

http://www.studyworksonline.com/cda/content/article/0,,NAV2-95_SAR1769,00.shtml 

Math Wizz: Integers Menu: http://www.mathwizz.com/integers 

Adding and Subtracting Positive and Negative Numbers:http://www.quia.com/fc/22424.html

AAA Math: Adding Integers: http://www.aaamath.com/g65-add-3-negative.html

AAA Math: Subtracting Integers:http://www.aaamath.com/sub65-sub-negative.html

Circle 0:http://nlvm.usu.edu/en/nav/frames_asid_122_g_4_t_1.html?open=instructions 

Circle 21:http://nlvm.usu.edu/en/nav/frames_asid_188_g_4_t_1.html?open=instructions 

Circle 99:http://nlvm.usu.edu/en/nav/frames_asid_269_g_4_t_1.html?open=instructions 

Negative Numbers Game: http://www.bbc.co.uk/skillswise/numbers/wholenumbers/whatarenumbers/negativenumbers/game.shtml

Interactive Integer Crossword: http://www.mathgoodies.com/puzzles2004/puzzles/Iintegers1.html 

Tic Tac Go:http://www.fi.uu.nl/toepassingen/03088/toepassing_wisweb.en.html 

Integers:http://www.unf.edu/~tbratina/integers/home.htm 

Geometry: http://agutie.homestead.com/files/index.html

Shape and Space in Geometry:http://www.learner.org/teacherslab/math/geometry/index.html 

Virtual Pattern Blocks:http://www.arcytech.org/java/patterns/patterns_j.shtml 

Rectangle: Area, Perimeter, Length, and Width

http://www.mste.uiuc.edu/users/carvell/rectperim/RectPerim.html 

Virtual Spinner: http://illuminations.nctm.org/tools/tool_detail.aspx?id=79 

MathGoodies: http://www.mathgoodies.com/lessons/toc_vol6.html

Math.com Calculators:http://www.math.com/students/calculators/calculators.html 

Equivalent Fractions: http://www.cut-the-knot.com/Curriculum/Arithmetic/EquivalentFractions.shtml 

Create a Graph:http://nces.ed.gov/nceskids/Graphing/ 

CanTeach List of Daily Math Graph and Yes/No Questions

http://www.canteach.ca/elementary/statprob9.html

Math and science predictions http://www.scifi.com/sfw/issue139/labnotes.html

Connected Math
http://www.mth.msu.edu/cmp/Overview/Glance.htm
Help students develop an "understanding of important concepts, skills, procedures, and ways of thinking and reasoning in number, geometry, measurement, algebra, probability, and statistics."Interactive Math http://www.mathsnet.net/campus/construction/index.html

Mental Math http://www.dslextreme.com/users/exstatica/psychic.swf

Math Manipulatives http://matti.usu.edu/nlvm/nav/vlibrary.html

Hotmath (some free video dems) http://hotmath.com/index_hm.html