Oswego City School District
Regents Exam Prep Center: Working With Line Symmetry
This site provides an excellent way to learn about line symmetry. It gives samples of questions that you can answer and self-check.
Oswego City School District
Regents Exam Prep Center: Polygons: Interior and Exterior Angles
A great resource where you can learn how to calculate the measures of the interior and exterior angles of any regular polygon with these tutorials. There are several practice pages for someone to try. The teacher resource page includes...
Oswego City School District
Regents Exam Prep Center: Isosceles Triangle Theorem
Material to supplement instruction on isosceles triangles: a lesson with related theorems and examples; an online practice quiz for students to take and check their answers; and guidelines for proving the isosceles triangle theorem.
Better Lesson
Better Lesson: Sorting Shapes
Clean Up this Mess! The classroom shapes are in one big heap. Students will work in teams to come up with a way to sort the shapes by attributes and create a visual representation to model their thinking. Pictures and videos of the...
National Council of Teachers of Mathematics
Nctm: Standards for School Mathematics
This standards-based NCTM website offers resources for teachers of mathematics for all grade levels, including interactive math tools, lesson plans, online resources, and the like.
Other
Mathematics: Fibonacci Numbers and the Golden Section
This resource contains everything you ever needed to know about Fibonacci numbers. You'll find mathematical and historical facts, examples, problems, interactive demonstrations, and more.
New York Times
New York Times: Steven Strogatz on the Elements of Math Series the New York Times
[Free Registration/Login Required] On this site, Cornell University mathematics professor, Steven Strogatz, shares his 15-part series of columns on the elements of math. He investigates topics ranging from negative numbers to subtraction...
CK-12 Foundation
Ck 12: Regular and Irregular Polygons
[Free Registration/Login Required] Students explore the concept of regular and irregular polygons by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn...
Mathigon
Mathigon: Geometry: Triangles and Trigonometry: Properties of Triangles
This lesson focuses on the properties of triangles, a closed shape that has three sides, three vertices, and and three internal angles. There are different types of triangles such as a right triangle, obtuse, and acute based on the...
Mathigon
Mathigon: Geometry: Polygons and Polyhedra: Polygons
This lesson focuses on polygons; a polygon is a closed, flat shape that has only straight sides. Polygons can have any number of sides and angles, but the sides cannot be curved.
University of St. Andrews (UK)
University of St. Andrews: Zenodorus
This University of St. Andrews site contains information on the accomplishments of Zenodorus. Many good links are provided throughout the site.
University of St. Andrews (UK)
University of St. Andrews: John Von Neumann
This University of St. Andrews site describes von Neumann's childhood through his death. Excerpts from articles on his life are stated here.
University of St. Andrews (UK)
University of St. Andrews: Francois Viete
The University of St. Andrews offers this iography of Francois Viete. Many links are provided for more information.
University of St. Andrews (UK)
University of St. Andrews: Georg Friedrich Bernhard Riemann
This University of St. Andrews site contains biographical information as well as accomplishments of Riemann.
University of St. Andrews (UK)
University of St. Andrews: Biography of Menaechmus
This University of St. Andrews site contains biographical information on the mathematician Menaechmus.
University of St. Andrews (UK)
University of St. Andrews: Benoit Mandelbrot
This Univ. of St. Andrews site contains an overview of Mandelbrot's life and accomplishments.
University of St. Andrews (UK)
University of St. Andrews: John Kemeny
This University of St. Andrews site provides biological information as well as accomplishments of Kemeny.
University of St. Andrews (UK)
University of St. Andrews: Biography of Hero
This University of St. Andrews site contains information on the life of Heron as well as his accomplishments.
University of St. Andrews (UK)
University of St. Andrews: Leonardo Pisano Fibonacci
This University of St. Andrews site contains biographical information on the life and accomplishments of Fibonacci.
University of St. Andrews (UK)
University of St. Andrews: Charles Lutwidge Dodgson
This site from the University of St. Andrews provides biographical information on the mathematician/writer Lewis Carroll, also known as Charles Lutwodge Dodgson.
University of St. Andrews (UK)
University of St. Andrews: Diophantus of Alexandria
This Univ. of St. Andrews site provides information on "the father of algebra," Diophantus.
University of St. Andrews (UK)
University of St. Andrews: Julius Wihelm Richard Dedekind
This University of St. Andrews site provides biographical information and accomplishments of Dedekind.
University of St. Andrews (UK)
University of St. Andrews: Lazare Carnot
This page offers an excellent biography on Lazare Carnot, a French mathematician, engineer, military captain, and defense specialist (1753-1823.) Discusses his life and his contributions to these fields.
University of St. Andrews (UK)
University of St. Andrews: Georg Ferdinand Cantor
This site, which is provided for by the University of St. Andrews, gives information on the German mathematician Cantor.