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Hpedsb: Geometry
This page of Geometry links addresses many of the Geometry expectations in the Ontario K-8 Math curriculum. There are simple sorting exercises for Grade One and Cartesian Graphing tasks for the intermediate grades.
Government of Alberta
Learn Alberta: Math Interactives: Exploring Dilations
Investigate dilations using this interactive resource. Students are given an opportunity to explore how scale factors can be used to enlarge or reduce the size of a given figure. Be sure to follow the link to the printable activities,...
Wolfram Research
Wolfram Math World: Euclid: The Elements
The classic treatise in geometry written by Euclid is presented in English. It is the textbook used for more than 1,000 years in western Europe.
University of Cambridge
University of Cambridge: Maths and Sports: Little Little G
Could the altitude of the city hosting the Olympic and Paralympic Games have an effect on performance in the long jump? This challenging activity encourages mathematical reflection, investigation and discussion as students explore how...
University of Cambridge
University of Cambridge: Maths and Sports: The Olympic Logo
How would you write a LOGO program to approximately reproduce the Olympic Rings logo? This activity is designed to be accessible to students at all levels of secondary maths (Key Stages 3, 4 and 5).
Mathematics Archives
Math Archives: Lessons, Tutorials and Lecture Notes
This site has links to review pages on many high school and college math topics including Calculus.
Analyze Math
Analyze Math: Medians of Triangle
The properties of the medians of a triangle are explored using an interactive geometry applet.
Analyze Math
Analyze Math: Cone Problems
The geometry tutorial explores problems related to the surface area and volume of a cone. The activity has several examples with detailed solutions.
Analyze Math
Analyze Math: Parallelogram Problems
Learners explore the geometry topic of parallelograms. The word problems include detailed solutions.
Math Planet
Math Planet: Geometry: Advanced Information About Circles
Provides advanced information about circles through the use of examples and a brief video lesson. [1:00]
CK-12 Foundation
Ck 12: Geometry: Chords in Circles
[Free Registration/Login may be required to access all resource tools.] In this lesson, students apply chord theorems. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
CK-12 Foundation
Ck 12: Geometry: Tangent Lines
[Free Registration/Login may be required to access all resource tools.] This concept teaches students about tangent lines and how to apply theorems related to tangents of circles.
Math Planet
Math Planet: Pre Algebra: Angles and Parallel Lines
Explains angles and parallel lines through examples and a video lesson.
Johan Claeys
Math Abundance: The Circle: Basic Concepts
Goes over the equation of a circle, parametric equations of a circle, intersection of circle and line, tangent line in a point of a circle, etc.
Other
Math Across the Curriculum: Art and Linear Perspective
This website contains an easy to understand explanation of vanishing point and other concepts of linear perspective.
Alabama Learning Exchange
Alex: Surface Area of Pyramids and Cones
For this inquiry-based lesson, students will discover the formulas for the surface area of pyramids and cones. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.
Analyze Math
Analyze Math: Perpendicular Bisector
Learners explore the definitions and properties of the perpendicular bisector. The interactive activity includes an applet to explore the properties of the perpendicular bisector.
Analyze Math
Analyze Math: Triangle Problems
Here are five triangle problems to solve using the Law of Sines, Law of Cosines, Pythagorean Theorem, and trigonometry. All problems have detailed written solutions included.
Khan Academy
Khan Academy: Dilate Triangles
Given a figure and a definition of a dilation, draw the image. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: General Triangle Word Problems
Solve word problems that involve general triangles using trigonometry. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Trinity College Dublin
Trinity College: Gottfried Wilhelm Leibnitz (1646 1716)
This site contains events of the life of Gottfried Leibnitz. It is presented in a timeline form.
Smithsonian Institution
National Museum of American History: Slates, Slide Rules and Software
Did you learn to calculate using a 7-foot-long slide rule? Did you learn about the properties of numbers using brightly colored Cuisenaire rods? Ever wonder who invented the graph paper you used in geometry class? Go back to the...
Trinity College Dublin
Trinity College: Rene Descartes (1596 1650)
Events of Rene Descartes' life are presented in a timeline form. The biographical information is taken from "A Short Account of the History of Mathematics" by W. W. Rouse Ball (4th Edition, 1908).
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.
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