Lesson Plan
Curated OER

Properties of Special Parallelograms

For Teachers 8th - 10th
Students identify properties of parallelograms. In this geometry lesson, students label polygons as parallelogram or not. They define and label the properties of a kite.
Worksheet
Curated OER

Parallel Lines and Transversals

For Students 10th
In this parallel lines and transversals activity, 10th graders solve nine different problems related to measuring parallel lines and transversals. First, they name two more pairs of parallel segments, two more skew segments, and two...
Lesson Plan
Curated OER

Corresponding Sides and Angles of Similar Triangles

For Teachers 9th - 10th
Students differentiate between corresponding sides ad angles of two triangles. In this geometry instructional activity, students identify the differences as well as the similarities between two triangles. They differentiate between...
Worksheet
Curated OER

Concurrence

For Students 10th
In this concurrence learning exercise, 10th graders solve 10 different problems related to determining various concurrences. First, they determine which type of triangle has two altitudes outside of it. Then, students determine the...
Worksheet
Curated OER

The Pentagram Problem

For Students 7th - 10th
In this pentagram instructional activity, learners examine a pentagram and number the intersection of lines.  They number the crosspoints in such a way that the sum of the numbers on each line are equal.  This one-page...
Worksheet
Curated OER

Polygons

For Students 10th
In this polygons worksheet, 10th graders identify and define both a polygon and a convex polygon and then, they apply two theorems that involve the interior and exterior angles of a convex polygon. First, they find the sum of the...
Lesson Plan
Curated OER

Incenter of a Triangle

For Teachers 10th
Tenth graders find the incenter of a triangle. In this geometry lesson, 10th graders define the way to create an incenter with an angle bisector. They differentiate between incenter and incircle.
Lesson Plan
Curated OER

Folding to Make Shapes

For Teachers 2nd
Second graders identify different polygons and their attributes. In this geometry lesson, 2nd graders get to know polygons by studying the vocabulary and finding polygons in their classroom. They create these shapes and then find their...
Lesson Plan
Curated OER

Determining the Uniqueness of a Circle

For Teachers 6th - 8th
Middle schoolers use this lesson to determine how circles are different from other shapes. In groups, they determine the accuracy of three theorems based on the uniqueness of circles. They use a software program to hypothesize about...
Worksheet
Curated OER

Applications of Hyperbolas

For Students 10th
In this hyperbola worksheet, 10th graders solve and complete 6 different problems. First, they determine the cross-section of a hyperbolic paraboloid curve. Then, students find where the cone intersects the ground in hyperbola as...
Worksheet
Curated OER

Rectangles

For Students 10th
In this rectangles worksheet, 10th graders solve 10 problems related to the rectangle illustrated on the sheet. First, they use the rectangle and the given information to solve each of the five problems that follow relating to its angle...
Worksheet
Curated OER

The Center of a Circle

For Students 10th
For this center of the circle worksheet, 10th graders solve 5 different center of the circle measurements. First, they draw a circle and add two points on it. From there, students construct a line segment and a midpoint on the line...
Worksheet
Curated OER

Center of Attention

For Students 4th - 6th
In this finding the center worksheet, students find the center of a rectangle and a circle by using cardboard and a ruler. Students then answer 2 questions.
Lesson Plan
Curated OER

Exploring Chords: Products of Chord Segments

For Teachers 7th - 10th
Students identify the properties of chords. In this geometry lesson, students multiply chord segments to find the solution to their problem. They construct two chords that cross on  a circles.
Lesson Plan
Curated OER

Secant Line Approximation of the Tangent Line

For Teachers 9th - 11th
Pupils perform operation with secant and tangent lines. In this calculus lesson, students find the derivative and relate it to the slope of a line. They differentiate between secant and tangent as they intersect a circle, using Cabri.
Lesson Plan
Curated OER

Graphing Systems of Equations - Word Problemsr

For Teachers 8th - 10th
Students solve word problems which involve graphing systems of equations. After discussing methods of solving word problems, the teacher demonstrates how to solve problems which involve graphing. They work together, at their desks, and...
Worksheet
Curated OER

Algebraic Solution of a Quadratic, Linear System

For Students 8th - 10th
In this algebra instructional activity, students solve systems of equations using linear and quadratics. They graph their solutions on a coordinate plane. There are 5 questions with an answer key.
Lesson Plan
Curated OER

Geometry: Lesson 1: Points, Lines, Segments, Angles

For Teachers 4th
Fourth graders examine the concepts of, draw, and label points, lines, segments, and angles, They draw, label, and identify horizontal, vertical, intersecting, parallel, and perpendicular lines. They complete an associated worksheet that...
Lesson Plan
EngageNY

Secant Angle Theorem, Exterior Case

For Teachers 9th - 12th Standards
It doesn't matter whether secant lines intersect inside or outside the circle, right? Scholars extend concepts from the previous lesson to investigate angles created by secant lines that intersect at a point exterior to the circle....
Activity
Illustrative Mathematics

Kimi and Jordan

For Teachers 8th - 12th Standards
Kimi and Jordan have taken summer jobs to supplement their weekly allowances. Kimi earns more per hour than Jordan, but Jordan's weekly allowance is greater. This activity asks students to determine how the incomes of the two workers...
Activity
PBL Pathways

Students and Teachers

For Students 10th - Higher Ed Standards
Predict the future of education through a mathematical analysis. Using a project-based learning strategy, classes examine the pattern of student-to-teacher ratios over a period of years. Provided with the relevant data, learners create a...
Worksheet
3
3
K12 Reader

Basic Geometry Terms

For Students 4th - 5th Standards
Set your pupils up to start on geometry by teaching them some introductory terminology. Pupils learn the terms by reading a short passage and looking at examples. They then respond to five questions related to the text.
PPT
Bowels Physics

Kinematics

For Teachers 9th - 12th
Lead your class on a speedy journey as you present an effective lesson on kinematics. Individuals review speed, acceleration, and velocity before completing several practice problems to integrate the concepts. 
Lesson Plan
Curated OER

Middle Grades Math: Balancing Equations

For Teachers 7th - 9th Standards
Learners solve linear equations. By observing the graph of each side of an equation using the TI-nspire graphing calculator, your class gains insight into solutions, as well as balancing equations and transforming linear equations....