Lesson Plan
Curated OER

Area of Triangle using the Semi-Perimeter and Radius

For Teachers 8th - 10th
Students investigate the properties of circles. In this geometry lesson, students calculate the area and perimeter of a triangle. They identify the perimeter and radius length of a circle.
Lesson Plan
Curated OER

Inscribed Right Triangles

For Teachers 7th - 9th
Learners calculate the measurements of the inscribed angles of a triangle. For this geometry lesson, students relate the hypotenuse of a right triangle and the diameter of a circle to each other. They calculate the diameter of a circle...
Lesson Plan
Curated OER

Triangle Side Lengths and Angles Measures

For Teachers 9th - 10th
Students identify missing sides and angles. In this geometry lesson, students use triangular theorems to identify the missing sides. They use the Pythagorean Theorem to find the different ratios of each side.
Lesson Plan
Curated OER

Inscribed Quadrilaterals and Parallelograms

For Teachers 9th - 10th Standards
Students differentiate between inscribed quadrilaterals and parallelograms. In this geometry lesson, students identify the shaped of the polygons when it is inscribed inside of a circle. They calculate the missing angles of the inscribed...
Lesson Plan
Curated OER

Investigating Trigonometric Ratios Through Similar Right Triangles.

For Teachers 8th - 10th
49Students investigate the properties of right triangles. In this geometry lesson, students differentiate between similar and congruent triangles. They use the Pythagorean Theorem to find the missing angles and sides.
Lesson Plan
Curated OER

Investigating Trigonometric Ratios Through Similar Right Triangles

For Teachers 9th - 10th
Students identify similar and congruent right triangles. In this geometry lesson, students use trigonometric ratios to identify missing sides and angles of a triangle. They differentiate similar and congruent triangles.
Lesson Plan
Curated OER

Robot Cartography

For Teachers 8th - 10th
Students identify points plotted on the coordinate plane. In this geometry lesson, students learn to read a map using concepts of a coordinate plane grid. They find the path given a map to tell them where to go.
Lesson Plan
Curated OER

Marshmallow Towers

For Teachers 7th - 10th
Students explore geometry by completing a marshmallow activity in class. For this architecture lesson, students identify the jobs of civil engineers and architects while identifying different geometric shapes as well. Students utilize...
Lesson Plan
Curated OER

Integers

For Teachers 9th - 11th
Students perform order of operation using integers. In this algebra lesson, students apply properties of integers as they add, subtract, multiply and divide integers. They work in groups to complete a RAFT assignment.
Lesson Plan
Curated OER

Design a Zoo Project

For Teachers 6th - 8th
Students research animals to become experts on them. They design a zoo to fit their animal's climate and region. They create a computer drawing of their zoo at the end of the lesson.
Lesson Plan
Curated OER

Iowa - Here We Come

For Teachers 9th - 12th
Students practice their geography skills. In this geography activity, students plan a trip in their state that includes calculating mileage, time, and other costs. Students also submit a written trip itinerary.
Lesson Plan
Curated OER

The Berenstain Bears' Mad, Mad, Mad Toy Craze

For Teachers 2nd - 4th
Pupils explore personal finances. In this money management lesson, students read The Berenstain Bears' Mad, Mad, Mad Toy Craze. Pupils examine the spending habits of Brother Bear and Sister Bear. Students analyze opportunity costs as well.
Lesson Plan
Curated OER

Division Day 1

For Teachers 3rd - 5th
Students complete division problems where they solve problems based on the story The Doorbell Rang. In this division lesson plan, students also write journal entries about division.
Lesson Plan
Curated OER

Heron's Formula

For Teachers 9th - 10th
Learners use Heron's formula to calculate the area of a triangle. In this geometry lesson, students use three different methods to solve the area of a triangle. They find and construct the incentor and angle bisector of a triangle.
Lesson Plan
Curated OER

Special Right Triangles

For Teachers 9th - 10th
Students identify different types of special right triangles. In this geometry lesson, students differentiate between right triangles and isosceles triangles. they construct the triangles using geometry software and make conjectures...
Lesson Plan
Curated OER

Compound Locus

For Teachers 7th - 10th
Students investigate circles and compound locus. In this geometry lesson, students identify the distance from a point to a line. They use Cabri software to create lines and circles.
Lesson Plan
Curated OER

Conic Sections and Locii

For Teachers 9th - 11th
Students differentiate between ellipse and hyperbola. In this algebra lesson, students graph and solve elliptical equations. They use the cabri program to create the different conics and move them around.
Worksheet
Curated OER

Colors Samples

For Students 4th - 5th
In this math worksheet, students take the time to count out the colors of the candies. They graph the results and make inferences from the information.
Worksheet
Curated OER

Expressions of Appalachian Mountain Folk

For Students 4th - 5th
In this math worksheet, learners plot the coordinates and then unscramble a code in order to decipher a riddle about the expressions used in the Appalachian Mountains.
Lesson Plan
Curated OER

Finding the LCM

For Teachers 4th - 8th
Young scholars explore the concept of finding the least common multiple of two numbers. In this least common multiple lesson, students find the least common multiple of two numbers.
Lesson Plan
Curated OER

Bingo Brown and the Language of Love

For Teachers 4th - 5th
Learners study credit and interest in a novel and consumer math activity. In this credit lesson, students read the book Bingo Brown and the Language of Love. Learners discuss the book and the ideas of credit, interest, and loans....
Lesson Plan
Curated OER

Constructing Parallel Lines

For Teachers 8th - 10th
Learners construct parallel lines using a protractor and a straightedge. In this geometry activity, students identify the properties of parallel lines. They use Cabri to graph and observe the lines.
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

Orthocenter Of a Triangle

For Teachers 8th - 10th
Students find the orthocenter of a triangle. In this geometry lesson, students identify where the altitudes meet in a triangle. They use Cabri software to explore acute, obtuse and right triangles.