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Instructional Video25:49
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Flipped Math

Unit Circle and Radians

For Students 9th - 12th Standards
Measure angles is easy as pi. Pupils review special right triangles to find exact values for trigonometric functions. Scholars learn about radians and how they connect to measurements in degrees. They find exact and approximate values of...
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Organizer
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Calculate the Area

For Students 6th
In this area of a circle worksheet, 6th graders must calculate the area of 5 circles given either the radius or diameter. Students must write the area on the line provided and a blank space is provided for students to work out the...
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Worksheet
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Calculate the Circumference

For Students 7th
For this calculate the circumference worksheet, 7th graders find the circumference given the diameter of 4 circles; the formula and the answers are provided.
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Worksheet
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Circle the Simile

For Students 5th - 7th
Figurative language is a welcome addition to creative writing. Clearly describe similes with this worksheet. For each of 10 example sentences, learners have to identify what is being compared. An answer key is provided with this great...
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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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Handout
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Curated OER

Trigonometry Review Sheet

For Students 9th - 12th Standards
Get the trig facts fast, and use the review sheet as a guide in the classroom. The worksheet also includes a document version if any changes are needed to the problems. The information includes a small degree/radian chart, a graph of all...
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Worksheet
Curated OER

Circle Area, Perimeter and Circumference

For Students 5th - 8th
In this geometry skills worksheet, students respond to 7 questions that require them to find the area, perimeter, and circumference of circles.
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Worksheet
Curated OER

Circle Area, Perimeter and Circumference #2

For Students 5th - 6th
In this area, perimeter and circumference worksheet, students determine radius and circumference of given circles. A reference web site is given for additional activities.
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Worksheet
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Concurent Circles II

For Students 9th - 11th
In this geometry worksheet, students draw a shape based on the directions. They tell the reasons the four resulting circles are concurrent. A sample drawing is included.
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Worksheet
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Circles and Squares

For Students 2nd - 6th
In this circles and squares instructional activity, learners try to make a circle by only using straight lines and a square. Students follow 4 sets of directions.
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Worksheet
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Circle Graph-Fractions

For Students 3rd - 4th
In this circle graphs worksheet, students determine what fraction of a pie graph is a designated color. Answers are included on page 2.
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Worksheet
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Circle Percentages

For Students 5th - 6th
In this math instructional activity, students analyze 12 circles which have been divided into 2 or more sectors. Inside each part, students write the percentage of the whole circle that each sector represents.
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Worksheet
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Parts of a Circle

For Students 5th - 6th
In this circle worksheet, students choose the correct term that describes a given set of math symbols, using a labeled circle. A reference web site is given for additional activities.
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Worksheet
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Parts of a Circle

For Students 5th - 6th
In this parts of a circle instructional activity, students choose correct terms to identify labeled parts of a circle. A reference web site is given for additional activities.
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Worksheet
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Parts of a Circle

For Students 4th - 6th
In this parts of a circle instructional activity, learners choose the correct term to describe labeled parts of a circle. A reference web site is given for additional activities.
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Worksheet
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Area of Circle Worksheet

For Students 5th
In this area of circles worksheet, 5th graders find the area of a set of 4 circles, giving answers in terms of pi. Work space is provided, answers are includes.
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Worksheet
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Circles and Squares: Lemonade Picture

For Students K - 1st
In this shapes and colors worksheet, students analyze a picture of a glass of lemonade and trace all the circles and squares. Students color the shapes according to the directions.
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Worksheet
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Identify and Circle the Objects – Big or Small

For Students K - 2nd
In this big and small worksheet, students circle objects that are either big or small for whichever question is asked. Students complete 20 problems total.
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Worksheet
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Syllables: Circle words with one syllable

For Students 1st - 2nd
For this syllables worksheet, students read through a list of 20 different words and circle the ones that contain only one syllable.
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Worksheet
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Spelling: circle the incorrectly spelled word

For Students 1st - 2nd
In this spelling worksheet, students read through 5 problems that each contain 3 words. They circle the word that is spelled incorrectly.  
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Lesson Plan
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Exploring the Circular Motion of a Tennis Ball

For Teachers 9th - 12th
Students are introduced to the concept of circular motion. In groups, they participate in experiments to discover the law of inertia. They describe how forces act on objects during a circular motion. To end the lesson, they use these...
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Worksheet
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Percentages: Circle the Dots

For Students 3rd - 4th
In this percentages instructional activity, students will circle 25%, 50% and 75% of the dots in different boxes. There are a total of 24 boxes.
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Worksheet
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Decimal Circles

For Students 4th - 5th
In this math activity, students determine which decimal numbers are represented by twenty illustrations. Each illustration includes form one to four circles shaded in different ways.
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Organizer
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Calculate the Radius

For Students 6th
In this calculating radius worksheet, 6th graders find the radius of 5 circles given the circumference information. Students must write the radius on the line provided and a box is provided to them to show their work. 

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