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Lesson Plan
Curated OER

Finding the nth Term

For Teachers 10th - 11th
Students analyze patterns and try to figure out the next term in the sequence. In this algebra lesson, students discuss the functions rule and how it works to solve sequences. They practice solving problems and find the nth term or what...
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Worksheet
Curated OER

Comparisons with Circles

For Students 8th - 10th
In this geometry worksheet, students are asked to solve fractions using circles. They divide the circles into different parts and use inequality symbols to identify the parts needed. There are 36 problems dealing with fractions.
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Lesson Plan
Curated OER

Angles

For Teachers 7th - 12th
Students measure angles using a protractor. In this geometry lesson, students solve for the missing angles using equations set to the theorem of triangles. They measure missing angles through construction and identify congruent angles.
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Lesson Plan
Curated OER

Contructions and Conjectures

For Teachers 10th - 11th
Students make constructions and conjectures. In this geometry lesson, students construct right, acute and obtuse angles using a straight edge and a protractor. They investigate parallel lines and the angles formed by the angles.
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Lesson Plan
Curated OER

Special Triangles and Circles

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

Amazing Fibonacci

For Teachers 8th - 12th
Students 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 co-taught...
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Lesson Plan
Curated OER

Deductive and Inductive Reasoning

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

Properties of Reflections

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

Geometric Shapes

For Students 5th
In this geometry and shapes learning exercise, 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.
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Lesson Plan
Curated OER

Heron's Formula

For Teachers 9th - 10th
Students 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.
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Lesson Plan
Curated OER

Where Is The Juice?

For Teachers 9th - 12th
Young scholars 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...
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Lesson Plan
Curated OER

Mass Measurement

For Teachers 7th - 9th
Middle schoolers explore geometry by completing a physics activity on-line. In this mass measurement lesson, pupils define the terms mass, volume, and density and identify their relationship with each other. They complete an on-line...
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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.
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Worksheet
Curated OER

Connecting Cube Structures (C)

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

Perimeter and Area of Rectangles (C)

For Students 3rd - 6th
For this perimeter and area of rectangles practice worksheet, students use their problem solving skills to calculate the perimeter and area of 4 rectangles.
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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 are included. 
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Worksheet
Curated OER

If-Then Statements and Postulates

For Students 10th
In this if-then statements and postulates 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 conditional...
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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.
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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...
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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.  

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