Lesson Plan
Curated OER

Measuring the Egyptian Way using the Pythagorean Theorem

For Teachers 9th - 10th
Students measure using the Pythagorean Theorem. In this geometry lesson, students solve right triangles using the properties of the Pythagorean theorem. They apply the same knowledge to solving story problems.
Worksheet
Curated OER

Simplifying Radicals

For Students 9th - 11th
In this Algebra I/Algebra II/Geometry worksheet, students simplify numeric expressions involving radicals.    The one page worksheet contains nine multiple choice questions.  Answers are included.
Lesson Plan
Curated OER

Amazing Fibonacci

For Teachers 8th - 12th
Young scholars integrate the patterns of Fibonacci into music. In this geometry lesson, students apply the concepts of recursion, pattern and Phi or Golden Ratio to composing and playing music on various instruments. They lesson is...
Lesson Plan
Curated OER

Deductive and Inductive Reasoning

For Teachers 9th - 10th
Learners differentiate between inductive and deductive reasoning. In this geometry lesson, students identify congruent figures and examine logos for congruency.
Lesson Plan
Curated OER

Shape Recognition

For Teachers Pre-K - K
Students explore geometry by analyzing different shapes. In this shape identification lesson, students discuss the characteristics that make certain shapes unique and the same characteristics that cause shapes to look the same. Students...
Interactive
Curated OER

Area and Perimeter of Rectangles Worksheet (II)

For Students 10th
In this geometry worksheet, 10th graders determine area and perimeter of rectangles, given the width and the length. The one page interactive worksheet contains ten questions. Answers and hints are included. 
Lesson Plan
Curated OER

Properties of Reflections

For Teachers 9th - 10th
Students perform transformation on their polygons. In this geometry lesson plan, students identify the correct transformation of each shape. They move the polygons around on a coordinate plane. There are extension and homework activities...
Worksheet
Curated OER

Geometric Shapes

For Students 5th
For this geometry and shapes worksheet, 5th graders practice calculating the shaded area of 2 objects. Students count the squares on 2 grids to find the volume of each object in cube units.
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 plan, students use three different methods to solve the area of a triangle. They find and construct the incentor and angle bisector of a...
Interactive
Curated OER

Parallels and Quadrilaterals

For Students 9th - 10th
In this geometry worksheet, students identify the missing angles and sides of a quadrilateral. They differentiate between the different types of quadrilaterals. There are 20 questions with an answer key.
Lesson Plan
Curated OER

Where Is The Juice?

For Teachers 9th - 12th
Students are introduced to the component's of Ohm's Law. In groups, they practice their problem solving skills by reviewing problems solved earlier. They participate in activities that help them gather information on the importance of...
Worksheet
Curated OER

Connecting Cube Structures (C)

For Students 2nd - 4th
In this connecting cube structures practice learning exercise, students solve 4 problems that require them to use connecting cubes to build the pictured structures.
Worksheet
Curated OER

Perimeter and Area of Rectangles (C)

For Students 3rd - 6th
In this perimeter and area of rectangles practice activity, students use their problem solving skills to calculate the perimeter and area of 4 rectangles.
Lesson Plan
Curated OER

Bisectors of Triangles

For Teachers 10th
In this geometry worksheet, 10th graders solve problems involving the perpendicular bisectors and angle bisectors of a triangle and their points of concurrency.  The one page worksheet contains sixteen questions.  Answers...
Worksheet
Curated OER

If-Then Statements and Postulates

For Students 10th
In this if-then statements and postulates instructional activity, 10th graders solve 16 various types of geometry problems that include identifying the hypothesis and conclusions of each conditional statement. Then, they write each...
Interactive
CK-12 Foundation

Add and Subtract Three Mixed Numbers: Walking to School

For Students 6th - 8th Standards
Mixed numbers are the focus of a five-question interactive. Scholars move fraction pieces into strips and equations to find solutions. Questions challenge participants with multiple-choice, a true or false, and one discussion.
Interactive
CK-12 Foundation

Tangent Graphs: Slope and Angle

For Students 10th - 12th Standards
Learning about tangents doesn't have to be a slippery slope. Pupils drag a point around a unit circle to see how angle affects the slope of a line. They individually answer a set of challenge questions to come to the conclusion that...
Interactive
CK-12 Foundation

Sums of Mixed Numbers: Split the Addition

For Students 5th - 8th Standards
Five questions challenge scholars to add mixed numbers. A tool creates a visual model that separates whole numbers from fractions parts. Problem types include fill in the blank, true or false, and discussion.  
Lesson Plan
Curated OER

Define Geometry Terms

For Teachers 3rd - 5th Standards
The Common Core is intended to help all children meet high academic standards. Here is a Common Core designed lesson that is intended for learners with communication or language difficulties. The lesson is written in a narrative style...
Activity
Teach Engineering

Stay in Shape

For Teachers 7th - 9th Standards
Using their knowledge of right triangles, pupils find out how far a ship is from a light house. Class members determine how far around the world a ship would be sailing at a constant speed.
Assessment
1
1
Inside Mathematics

Quadratic (2006)

For Teachers 9th - 12th Standards
Most problems can be solved using more than one method. A worksheet includes just nine questions but many more ways to solve each. Scholars must graph, solve, and justify quadratic problems.
Assessment
Inside Mathematics

Rugs

For Teachers 8th Standards
The class braids irrational numbers, Pythagoras, and perimeter together. The mini-assessment requires scholars to use irrational numbers and the Pythagorean Theorem to find perimeters of rugs. The rugs are rectangular, triangular,...
Lesson Plan
02 x 02 Worksheets

Symmetry

For Teachers 9th - 11th Standards
Get learners' minds rotating and reflecting while looking for symmetry. Pupils investigate figures to determine the number of lines of symmetry and if the figure has rotational symmetry. Classmates work together in groups to find out the...
Lesson Plan
Virginia Department of Education

Pythagorean Theorem

For Students 8th Standards
Investigate the meaning of the Pythagorean Theorem through modeling. After comparing the area of the square of each side, individuals cut triangles and squares to facilitate the comparison.

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