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The Ambiguous Case

For Teachers 9th - 10th
Students investigate the relationship of triangles with its sides and angles. In this geometry lesson, students create visual on the graphing navigator as they study triangles. They move the sides around to create different angle-side...
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Equation of a Circle

For Teachers 9th - 12th Standards
Learners write the equation of a circle. For this geometry lesson, students check the solution of a coordinate pair by evaluating them. They graph the circle given the equation and radius.
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Standard Form of Quadratic Functions

For Teachers 9th - 12th Standards
Students factor quadratic equations. In this algebra lesson, students identify the factors and use them to graph the parabola. They find the parameters and vertex of each graph.
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The Solar Cycle

For Teachers 7th - 12th
Students research the solar cycle. In this Science lesson plan, students use the internet to investigate the solar cycle. Students produce a spreadsheet and graph from the information collected.
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Surface Area and Volume

For Teachers 3rd - 4th
Students are introduced to the notion of surface area and volume, learn the terminology used with surface area and volume and have experimented with the surface area and volume of different prisms.
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Sorting Through Spiders

For Teachers K - 3rd
Students utilize their own drawings of spiders to analyze and sort the attributes that each student drew.
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A Chick Called Saturday

For Teachers K
Students explain what a calendar is all about in terms of time measurement. They clearly communicate in oral, artistic, written and nonverbal forms.
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Marble Grab Bag: Certainly? Maybe? Impossible?

For Teachers 2nd
Second graders use a hands-on activity and a data chart to explain the certainty, probability, or impossibility of drawing a particular color of marble from a bag. This lesson comes with an excellent website, and many good worksheets...
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Edible Geometry

For Teachers 6th - 8th
Students examine a chart that lists the main characteristics of polygons and 3 dimensional figures. They make examples of the polygons and figures using pretzels and gum drops showing how the gum drops are vertices and the pretzels are...
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Coin Motion

For Teachers K - 1st
Students recognize coins and their values and count coin groups. They play a game where when music is turned on they skip, hop, jog and when it is turned off, they go to a spot in the room marked with the same coin or value as is in...
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Kindergarten Exploration Tubs

For Teachers K
Students identify their names as a symbol for themselves. They describe characteristics of organisms. They utilize tools to gather data and compare size.
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Geometric Angles

For Teachers 8th - 10th
Learners explore angles and their use in Geometry. Students investigate three different kinds of angles: obtuse, acute, and right angles through an online activity. They identify pairs of angles with special relationships: vertical,...
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Ideas That Lead to Probability

For Teachers 7th - 10th
Students explore and define the concept of probability. They utilize a random number generator to determine the fairness of a game. Internet and printable versions fo the activities are included.
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Graphing and the Coordinate Plane

For Teachers 7th - 8th
Students examine the four quadrants of Cartesian coordinate plane. They play maze games and coordinate games to discover how to read and plot points on the plane. Students plot points on the coordinate plane and examine the ratio of...
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Probability and Geometry

For Teachers 8th - 11th
Students explore the ways Geometry can help solve probability problems. Students describe platonic solids and practice calculating probability using an online resource. They construct dice with various numbers of sides to demonstrate...
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Functions and the Vertical Line Test

For Teachers 7th - 9th
Learners examine functions and function notation. They use computer activities to discover how to graph functions, and conduct a vertical line test. Students describe spatial relationships using coordinate geometry.
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Introduction to Functions

For Teachers 7th - 9th
Students explore functions, function rules, and data tables. They explore terms of linear functions. Students use computers to analyze the functions. Students write short sentences to explain data tables and simple algebraic expressions.
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Exploring Geometry in the Real World

For Teachers K - 1st
Students find real-world examples of a variety of geometric shapes. They conduct research, record observations, and write descriptions. They create a classroom cityscape and highlight the information they gathered. They present an oral...
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Geoboard Squares

For Teachers 2nd - 3rd
Students create squares of different sizes on a geoboard. They find and describe a pattern. Students use the pattern to determine the number of squares possible on a 10-by-10 geoboard. They create squares with a horizontal base (and...
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Adding Polynomials with Algebra Tiles

For Teachers 9th - 12th
Young scholars practice adding polynomials using algebra tiles. Students view a PowerPoint presentation in which they are introduced to the concept of modeling polynomials using a scaled down version of algebra tiles. Young scholars...
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Sales Spreadsheet

For Teachers 6th - 8th
Middle schoolers use Excel spreadsheets to organize purchases, discounts, sales prices, and sales tax. Students follow step by step instructions and enter formulas as well as use the auto sum feature to calculate required calculations.
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What Are Some Different Ways You Can Group Buttons

For Teachers 2nd
Second graders classify and group buttons. They discuss how their buttons are alike and different, and identify the characteristics of their handful of buttons. Students then classify their buttons into three groups, and create a...
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Measuring the Area of Polygons

For Teachers 4th
Fourth graders use pattern blocks to explore areas of polygons. They explain that the answers to the area of the same polygon vary according to the units of measurement used. They visualize how different units of measurement can be used...
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Making Metric And Customary Rulers

For Teachers 6th - 8th
Students create a ruler for the purpose of measurement using the standard and metric systems. The rulers are of different lengths and are compared to one another. Then students make conversions of different lengths using both systems of...

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