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Lesson Plan
EngageNY

Properties of Area

For Teachers 9th - 10th Standards
What properties does area possess? Solidify the area properties that pupils learned in previous years. Groups investigate the five properties using four problems, which then provide the basis for a class discussion.
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Lesson Plan
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Curated OER

Rocks and Minerals

For Teachers 4th - 7th Standards
Take young geologists on an exploration of the collection of rocks and minerals that we call Earth with an upper-elementary science lesson. Through a series of class discussion and hands-on investigations, students learn about the three...
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Lesson Plan
Curated OER

Conjectures For Intersecting Circles

For Teachers 9th - 10th
Students identify properties of circles. In this geometry lesson, students identify the center of two intersecting circles.They use Cabri software to create circles and move it around to make observation.
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Lesson Plan
Curated OER

Circles and Angles

For Teachers 9th - 11th
Students identify tangents, chords and secants. In this geometry lesson, students graph circles and identify angles created by secant lines, tangent lines and chords.
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Lesson Plan
Curated OER

Chords of a Circle

For Teachers 9th - 12th Standards
Teach how to differentiate between chords and perpendicular bisectors. In this geometry lesson, students relate the properties of chords and circle to solving right triangle. They define what makes two chords congruent in side a circle.
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Lesson Plan
Curated OER

Properties of Soil: Original Lesson Plan

For Teachers 3rd - 4th
This lesson is an investigation of soil properties, particularly texture, color and space for air and water. Student inspect soil samples found in their locale, perform several tests to determine different properties, and involves a ...
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Worksheet
Curated OER

Physical and Chemical Properties

For Students 9th - 10th
In this length worksheet, students read about the properties of carbon. Students also decide which of the given phrases go with which compound.
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Lesson Plan
Curated OER

Tangent Properties

For Teachers 9th - 12th
Students explore properties of tangent lines.  In this properties of tangent lines lesson plan, students discuss the perpendicular relationship between a tangent line on a circle and the circle's radius.  Students use that relationship...
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Lesson Plan
Curated OER

Circles And Cylinders

For Teachers 6th - 8th
Middle schoolers investigate some of the mathematical concepts involved in the study of circles. They first practice finding the circumference of a circle by finding the diameter and performing the calculation. The instructional activity...
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Lesson Plan
EngageNY

Tangent Segments

For Teachers 9th - 12th Standards
What's so special about tangents? Learners first explore how if a circle is tangent to both rays of an angle, then its center is on the angle bisector. They then complete a set of exercises designed to explore further properties and...
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Lesson Plan
EngageNY

Why Call It Tangent?

For Students 10th - 12th Standards
Discover the relationship between tangent lines and the tangent function. Class members develop the idea of the tangent function using the unit circle. They create tables of values and explore the domain, range, and end behavior of the...
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Lesson Plan
Curated OER

Investigating the properties of a circle

For Teachers 7th - 10th
Students use wax paper to look at different properties of circles such as chords, tangent lines, inscribed angles, and inscribed angles in a semi-circle, as well as finding the center of the circle, and use GSP to investigate cyclic...
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Worksheet
Curated OER

Chapter 7 - Objective 3.1 - Distributive Property

For Students 9th - 10th
In this distributive property activity, students use the distributive property to solve given equations. This one-page activity contains eight problems.
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Lesson Plan
Curated OER

Space Circles

For Teachers 5th
Fifth graders calculate the diameters and radius of planets as a book is read to them. For this diameter and radius lesson plan, 5th graders read the book Space Circles and calculate the measurements based on the information in this book.
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Lesson Plan
Curated OER

Properties of the Centers of a Triangle

For Teachers 9th - 12th Standards
High schoolers investigate properties of the four centers of a triangle and explore a special property of the circumcenter and orthocenter of a triangle. This lesson requires the use of Cabri, Jr.
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Lesson Plan
Curated OER

Fast Facts

For Teachers K - 5th
Ever use the inner circle/outer circle method of learning? Placing learners in a stationary inner circle and a rotating outer circle, they roll a die and attempt to be the first to call out an addition or multiplication equation with the...
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Lesson Plan
Curated OER

Connecting Formulas Related to Geometric Figures

For Teachers 8th - 12th
Young scholars identify diagrams of quadrilaterals and circles by different names and classify the figures. They name the areas for each diagram and practice solving the formulas for each.
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Worksheet
Curated OER

A Little Chemistry

For Students 9th - 12th
The molecular properties of water are the focus of this chemistry-based assignment. Multiple-choice, true-or-false, matching, and fill-in-the-chart style questions query assignees about the forces that hold the water molecule together,...
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Lesson Plan
Curated OER

Your Tax Dollars at Work

For Teachers 5th - 12th
In order to understand how tax dollars are spent, young economists use given data and graph it on a circle graph. Circle graphs are highly visual and can help individuals describe data. A class discussion follows the initial activity.
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Lesson Plan
Curated OER

Multiplying Exponents vs. Powers of Powers

For Teachers 8th - 10th
Use the power of a power property to solve exponential functions. The lesson plan refers to  differentiating between multiplying or adding exponents to find the value, and how to find the product of a power of a power.
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Lesson Plan
Curated OER

Property Lists for Quadrilaterals

For Teachers 9th - 12th
Students establish classifications of shapes by various properties (angles, sides, etc.). They introduce the important properties of common shapes. Students develop an awareness of the wide variety of ways the 2-D shapes can be alike.
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PPT
Curated OER

Some Shapes

For Teachers 1st - 2nd
Introduce the names and properties of basic 2-D shapes. Images and defining features of the circle, rectangle, triangle, and square are shown. Each image is colorful and includes a happy, smiling face, perfect for younger learners.
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Lesson Plan
Curated OER

Taxicab Metric, Circle

For Teachers 7th - 8th
Pupils create a circle using the taxi-cab metric. In this geometry lesson, students identify the properties of circles. They identify the idea of geometric shapes and how they come about.
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Handout
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Curated OER

Trig Cheat Sheet

For Teachers 10th - 12th Standards
Your pre-calculus learners will make use of this wonderful cheat sheet that summarizes all things trigonometric. Definitions based on both the unit circle and the right triangle are included, as well as many convenient trigonometric...

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