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Why We Study Trigonometry

For Teachers 10th - 11th
Students investigate the different properties of trigonometry. In this precalculus lesson plan, students find the six different identities of trigonometric ratios. They relate the ratios to that of a right triangle and apply it to real...
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Exploring Areas of Irregular Polygons

For Teachers 9th - 12th Standards
Students solve for the area of different polygons. For this geometry lesson, students identify and differentiate between regular and irregular polygons. They use properties of irregular polygons to solve problems.
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Law of Sines and Cosines

For Teachers 10th - 11th
Students solve problems using sine and cosine. In this precalculus lesson, students apply the properties of sine and cosine to solve non-right triangle problems. They use Heron's Law to find the area of a shape.
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Investigation - Who is Right?

For Teachers 3rd
Third graders explore mathematics by solving problems in groups. In this math functions activity, 3rd graders demonstrate their understanding of addition and subtraction by completing two digit math problems. Students define a list of...
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The Entrepreneur's Game

For Teachers 12th
Twelfth graders explore the basic principles of the US free enterprise system. They examine the basic principles of the US free enterprise system including profit motive, voluntary exchange, private property rights, and competition.
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Magical Shapes

For Teachers 1st
First graders practice manipulating shapes into different locations. They see that even though shapes may look different when they are moved into different locations, the shape remains the same with the same properties. They make...
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Mathematics: Prime and Composite Numbers

For Teachers 6th
Sixth graders explore how to apply the commutative property and the rules of divisibility. They examine the difference between prime and composite numbers.
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Inequalities Involving Absolute Value

For Teachers 9th - 12th
Pupils solve and graph inequalities involving absolute value. They discuss and identify the basic properties of inequalities, and solve basic examples.
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Slope Calculation

For Teachers 8th - 10th
Pupils compute the slope of a line that passes through two points and explain how the slope formula is derived. They determine properties associated with positive, negative, undefined, and no slope.
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Slope Calculation

For Teachers 7th - 9th
Students compute the slope of a line based on the coordinates of two points on the line. In addition, they examine the relationship between the numerical value of slope and its properties on a graph.
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Tessellations: Geometry and Symmetry

For Teachers 9th - 12th
High schoolers examine tesselllations and their geometric properties. They have a better knowledge of polygons, can identify types of symmetry in tessellations. Also students use visulization, spatial reasoning, and geometric modeling...
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Explorations with Shapes

For Teachers K
Students describe, identify and compare two-dimensional figures. They also name and demonstrate the relative position of objects using directional words. They sort and compare two-dimensional figures and three-dimensional objects...
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Scale Factors for Areas and Volumes

For Teachers 5th - 6th
Learners examine mathematical questions. They examine how to tackle mathematical questions and discover the effect of a change in length on area and volume. They examine the consequences of the physical properties sea animals on heat...
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Algebra I: Multiplying Polynomials and Factoring

For Teachers 8th - 12th
Students use concrete models (algebra blocks) to demonstrate their processes for solving quadratic equations. They apply the commutative, associative, and distributive properties to simplify algebraic expressions and to solve quadratic...
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Popcorn

For Teachers K - 1st
Students discuss the properties of popcorn. They explore the connection between corn, popcorn and Thanksgiving. As a class, students sing a popcorn song and create a popcorn craft. They practice writing the word popcorn. As a...
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GEOMETRY UNIT

For Teachers 9th - 12th
High schoolers, through investigation facilitated by dynamic geometry software, determine geometric properties and relationships involving two-dimensional shapes, and apply the results to solving problems.
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Geometry and Shapes

For Teachers 4th
Fourth graders are asked to name different shapes.Four to five students to share their answers with the class. The teacher leads the discussion in geometry about the properties associated with shapes.
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Equations With Radical Expressions

For Teachers 10th - 12th
Students solve systems of equations with radical expressions. After reading real life situation, they translate the problem into algebraic expressions. As a class, students solve quadratic equations and inequalities by graphing and...
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The 1 That Got Away

For Teachers 1st - 3rd
Students explore number properties. They using multilink blocks to explore doubling of the numbers and explore the patterns to investigate 2 to the power of n and how it is written. In addition, they usse the 100s board, number line and...
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Solving Single-Variable Equations Part II, Simplifying

For Teachers 7th
Seventh graders explore the concept of solving single-variable equations. In this solving single-variable equations lesson, 7th graders discuss how to simplify both sides of an equation. Students discuss using parenthesis and the...
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What Are Elements?

For Teachers 3rd - 7th
Students investigate elements by by defining scientific terms.  In this Periodic Table of Elements instructional activity, students utilize a glass of water, and powdered fruit drink to perform a lab activity demonstrating...
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Logariths

For Teachers 11th - Higher Ed
Pupils analyze, discuss and memorize the properties of logs. In this calculus instructional activity, students apply the rules of logs while playing a timed game to see which group can write the equations correctly. They walk away from...
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Law of Cosines

For Teachers 7th - 9th
Learners model scenarios using functions and their properties. In this trigonometry lesson, students calculate the angles of sine, cosine and tangent. They perform operation using a calculator.
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Are you in Golden Shape

For Teachers 7th - 10th
Learners solve and verify the solution for unknown measures. In this geometry lesson, students identify the properties of circles. They use the arc, angle and segment relationship to find the missing measures.

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