Lesson Plan
Curated OER

Constructions of Isosceles and Equilateral Triangles

For Teachers 4th - 9th
Students explore the difference between drawing and constructing a triangle utilizing The Geometer's Sketchpad on the computer. They create, develop and script constructions for both isosceles and equilateral triangles. Each student has...
Lesson Plan
Willow Tree

Functions

For Students 8th - 11th Standards
What makes a function a function? Learn the criteria for a relation defined as a function both numerically and graphically. Once young mathematicians define a function, they use function notation to evaluate it. 
Lesson Plan
Curated OER

How Does Light Travel?

For Teachers 6th
Sixth graders are read The Way to Start a Day by Byrd Baylor or Bear Shadow by Frank Asch. They discuss how the sun affects their daily life, 6th graders are encouraged to think about the light we recieve from the sun and how man has...
Lesson Plan
Curated OER

You Must Still Think Yourself, CAS Can Only Help

For Teachers 9th - Higher Ed Standards
Have the class learn about and make conjectures about a line intersecting a cubic.  For this making conjectures about a line intersecting a cubic lesson, students draw lines that intersect a cubic at three different points. ...
Lesson Plan
Curated OER

Compass Rose

For Teachers 6th - 10th
Young scholars describe the movement of the Earth as it relates to the sun. They construct a permanent compass rose and use it to find directions.
Lesson Plan
Curated OER

Reflections

For Teachers 10th
Tenth graders perform reflections on different geometric shapes. In this geometry worksheet,students define the concept of geometric reflections and find the coordinates of the reflection on a coordinate grid.
Interactive
Curated OER

Coordinate Plane

For Students 7th - 8th
In this algebra worksheet, students investigate the coordinate plane through graphing, plotting and identifying the different quadrants. They identify vertical and horizontal lines in the coordinate plane. There are 10 questions with an...
Lesson Plan
Curated OER

Special Triangles and Circles

For Teachers 9th - 11th
Students investigate special triangles and circles. In this geometry activity, students construct a perpendicular bisector and discuss angles of a triangle. They find the angle bisectors, vetex and the types of circle constructed.
Worksheet
Curated OER

Segments and Rays Homework

For Students 9th - 10th
In this geometry activity, students identify segments and rays using sketches. They sketch intersection to a plane and describe the relationship of the segment and ray as it related to the intersection. There are 15 questions.
Lesson Plan
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Secant and Secant Segments

For Teachers 9th - 10th
Students use the secant and secant segment theorem to solve problems. In this calculus lesson, students identify where the secant line crosses on a circle. They create circles and secants using cabri software.
Lesson Plan
Curated OER

Exploring Linear Equations

For Teachers 3rd
Third graders use graphing calculators to graph equations. They make visual models of algebraic expressions and they can readily see that an equation represents something.
Lesson Plan
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Measure Up!

For Teachers 5th - 12th
Students examine parallax and angular measurements.  In this investigative lesson plan students calculate distances of objects and map their results.
Lesson Plan
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A Perpendicular Pilgrimage

For Teachers 9th
Ninth graders design a safe passage through a 2-D obstacle. In this geometric math lesson, 9th graders engage in a hands on activity to better understand the concept of geometric and algebraic perpendicularity. Students will work in...
Lesson Plan
Curated OER

Orbital Motion

For Teachers 7th - 8th
Young scholars use a formula to measure the eccentricity of an ellipse, then state Kepler's Law of Elliptical Orbits. They predict the solar energy received at different positions in a planet's orbit.
Worksheet
Curated OER

The Right Angle

For Students 10th
In this geometry worksheet, 10th graders determine the answer to a vocabulary questions and then follow the give rules to place the answer in the appropriate place on the crossword grid.   The one page worksheet contains 18...
Lesson Plan
Curated OER

Math is Beautiful

For Teachers 4th - 7th
Students explore how geometry is used on the composition of artworks by artists from different cultures. This lesson is equally suited for a Math or Art classroom at the late-elementary or early-middle school level.
Interactive
Curated OER

SAT Prep

For Students 11th - 12th
In this secondary mathematics worksheet, students are provided with questions that are designed to provide SAT test preparation. The one page interactive worksheet contains ten questions. Answers are not provided. 
Lesson Plan
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Fly on the Ceiling

For Teachers 4th
Fourth graders complete activities to increase their understanding of coordinates. They listen to Julie Glass' book, The Fly on the Ceiling, before playing fly tic-tac-toe and Swat the Flies, in which they use ordered pairs to state the...
Interactive
Curated OER

SAT Grid Ins Practice Test 04

For Students 10th - 11th
In this SAT Practice Test, students solve a variety of problems that range from solving for a variable, rate, probability, and area.
Lesson Plan
Curated OER

Geometric Figures and the Coordinate Plane

For Teachers 6th
Sixth graders explore geometric figures. In this geometry lesson, 6th graders manipulate properties and relationships of geometric figures to identify objects on the coordinate planes and describe where figures sit on the planes.
Lesson Plan
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Basic Matrix Algebra

For Teachers 9th - 11th
Learners perform basic matrices operations. In this algebra lesson, students add, subtract, multiply and divide matrices. They solve system of equations using matrices.
Lesson Plan
Curated OER

Math: A Geometric Neighborhood

For Teachers 6th - 8th
Students, as a final project, draw a picture of their ideal neighborhood on a sunny day. In addition to the sun, their drawings include homes, trees, streets, and selected objects. Each object in their drawing has a written description...
Worksheet
Curated OER

Angles: Prove It!

For Students 5th - 6th
In this angle worksheet, students first draw a set of intersecting lines, then use a protractor to complete a set of instructions about angles and answer related questions. Answers included on page 2.
Lesson Plan
Curated OER

Exploring Angle/Pair Relationships

For Teachers 7th - 10th
Students find missing angles and sides of triangles. In this geometry lesson, students create intersecting lines to measure angles. They use Cabri Software to create virtual angles.