Texas Education Agency
Texas Gateway: Making Conjectures About Circles and Segments
Given examples of circles and the lines that intersect them, the student will use explorations and concrete models to formulate and test conjectures about the properties and relationships among the resulting segments.
Geometry Help
Geometry Help: Tangent Lines
Explains the basic concept of congruent triangles with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Other
Dans Math: Lessons: Calculus (Part 1)
College professor Dan Bach reviews the basic calculus concepts of limits and derivatives. The site includes examples and animated graphs.
Curated OER
Spark Notes: Tangent Lines and Secant Lines
This site contains definitions and pictures of secant and tangent lines. The site contains links to define terms on the page.
Curated OER
Spark Notes: Tangent Lines and Secant Lines
This site contains definitions and pictures of secant and tangent lines. The site contains links to define terms on the page.
Curated OER
Spark Notes: Tangent Lines and Secant Lines
This site contains definitions and pictures of secant and tangent lines. The site contains links to define terms on the page.
Oswego City School District
Regents Exam Prep Center: Circles, Segments, and Area
A wealth of resources to supplement instruction on parts of the circle. Find lessons describing chords, tangents, secants, and segments, as well as related practice quizzes and classroom activities.
Math Graphs
Houghton Mifflin: Math Graphs: Mean Value Theorem 1 [Pdf]
The resource examines the Mean Value Theorem. Students sketch secant and tangent lines. The graph is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Mean Value Theorem 2 [Pdf]
The resource examines the Mean Value Theorem. Learners sketch secant and tangent lines. The graph is available in PDF format.
Hofstra University
Hofstra University: An Introduction to the Derivative
This lesson from the Hofstra University discusses the derivative. The lesson begins with the average rate of change of a function and discusses how this is related to the derivative of a function at a point. The site gives visual aids...
Math Graphs
Houghton Mifflin: Math Graphs: Mean Value Theorem 3 [Pdf]
The handout investigates the calculus concept that given a section of a smooth curve, there is at least one point on that section where the slope of the curve is the same as the average derivative. The exercise consists of a graph that...
Math Graphs
Houghton Mifflin: Math Graphs: Mean Value Theorem 4 [Pdf]
The handout investigates the calculus concept that given a section of a smooth curve, there is at least one point on that section where the slope of the curve is the same as the average derivative. The exercise consists of a graph that...
Other
Ctte: Geometer's Sketch Pad Activities
This site offers numerous activities for middle school and high school learners to explore using Geometer's Sketch Pad.
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