Lesson Plan
Curated OER

Lesson #20 Rates of Change and Velocity

For Teachers 10th - 12th
Learners investigate speed. In this rate of change lesson, students complete a rate/time/distance table to determine the average m.p.h. of a given trip. They listen and follow along with the lecture and examples to determine the average...
Lesson Plan
Curated OER

DEAD MAN'S CURVE

For Teachers 9th
Ninth graders, after being given a unique scenario and a task sheet on Dead Man's Curve, calculate and explain the force needed to keep a car on a curve using a set of formulas and a geometric property of circles. They utilize and create...
Lesson Plan
Curated OER

Powers of Trig Functions

For Teachers 10th - 11th
In this trigonometric worksheet, students solve integrals by substitution and the Pythagorean theorem. Students use their trigonometric functions to solve problems. This four-page worksheet contains 20 problems.
Worksheet
Curated OER

Geometry Regents Bimodal

For Students 9th - 10th
In this geometry worksheet, students solve problems that are bimodal. They define properties of circles and triangles. There are 117 questions.
Lesson Plan
Curated OER

Solving Intercepted Arcs

For Teachers 9th - 11th
Students investigate circles and its arcs. In this geometry lesson, students identify the relationship between an circle and its intercepted arcs. THey identify the central and inscribed angles.
Lesson Plan
Curated OER

Angles and Arcs

For Teachers 9th - 10th
Students discuss the sum of central angles and use string to create them on circles. They find the measure and length of both minor and major arcs. Students give examples of concentric, similar, and congruent circles and congruent arcs.
Lesson Plan
Curated OER

Math: Arcs and Chords

For Teachers 9th - 10th
Young scholars draw diagrams demonstrating how it is possible to two central angles to be congruent and their minor arcs are not congruent. In groups, they illustrate theorems with their constructed circles, create diameters of circles...
Lesson Plan
Curated OER

Calculus: Graphical, Numerical, Algebraic

For Teachers 10th - 12th
Students explore the interplay between the geometric and analytic information and on the use of calculus both to predict and to explain the observed local and global behavior of a function. They write a paragraph describing any...
Activity
Mathematics Archives

Math Archives: Visual Calculus: Tangent Lines

For Students 9th - 10th
This is a detailed site concerning tangent lines to curves. The site gives the limiting definition of the slope of the tangent. This site has a link to a discussion and animation of the approaching secant line, a java applet for the...
Handout
Math Open Reference

Math Open Reference: Secant

For Students 9th - 10th
Learn about secants with this handy reference guide. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.
Handout
Math Open Reference

Math Open Reference: Tangent

For Students 9th - 10th Standards
Learn about tangents with this handy reference guide. Provides detailed definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Interactive
Walter Fendt

Walter Fendt: Slope of a Secant / Tangent Line

For Students 9th - 10th
A short interactive activity to help you visualize the slope of a secant as it gets closer to the tangent line.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Segments From Secants and Tangents

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Apply the Tangent Secant Segment Theorem.
Activity
Texas Instruments

Texas Instruments: Angles Formed by Intersecting Chords, Secants, and Tangents

For Teachers 9th - 10th Standards
In this activity, students will investigate properties of angles and arcs formed when chords, secants, and tangents intersect and intercept arcs in a circle. They discover several important theorems concerning circles and arc sizes. They...
Handout
Northeast Parallel Architectures Center, Syracuse University

Npac Reu Program: Tangent Lines

For Students 9th - 10th
The Northeast Parallel Architectures Center at Syracuse University offers a fairly detailed site explaining the slope of a tangent line to a curve.
Activity
CK-12 Foundation

Ck 12: Segments From Secants and Tangents

For Students 9th - 10th
[Free Registration/Login Required] Students will adjust points to explore secants and tangents of circles. Click learn more to watch a video and click challenge me to answer a practice question.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Segments From Secants and Tangents

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to solve for missing segments created by a tangent line and a secant line intersecting outside a circle.
Interactive
Interactive Mathematics

Interactive Mathematics: Graphs of Tangent, Cotangent, Secant, and Cosecant

For Students 9th - 10th Standards
The tutorial explores the graphs of the tangent, cotangent, secant, and cosecant functions. The resource consists of animations and examples.
Activity
Ministerio de Educacion, Cultura y Deporte (Spain)

Cnice: Relacion De Ejercicios Interactivos.

For Students 9th - 10th
In Spanish. Interactive activities online on various geometric and trigonometric concepts such as area, perimeter, secants, tangents, etc. A terrific resource for students. Site is organized acoording to shape. (triangle, quadrilaterals,...
Lesson Plan
Texas Instruments

Texas Instruments: Chords, Secants, and Tangents

For Teachers 9th - 10th Standards
Students construct chords, secants, and tangents. From those constructions, they develop a deeper understanding of the terms, as well as explore certain properties of the constructions.
Lesson Plan
Texas Instruments

Texas Instruments: Segments Formed by Intersecting Chords, Secants, and Tangents

For Teachers 9th - 10th Standards
This activity is designed to help students discover several important theorems concerning lengths of segments formed by intersecting chords, secants, and tangents.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Tangent and Secant Lines 1 [Pdf]

For Students 9th - 10th
Students use the given graph to sketch secant and tangent lines. The resource consists of an enlarged printable version of a graph available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Tangent and Secant Lines 2 [Pdf]

For Students 9th - 10th
Learners sketch the secant and tangent lines of a given graph. The resource includes an enlarged printable version of a graph available in PDF format.
Handout
Geometry Help

Geometry Help: Tangent Lines

For Students 9th - 10th Standards
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.

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