Organizer
Curated OER

Circle Halves

For Students K - 1st
In this circle worksheet, students study that two semi circles make a complete circle. Students cut out the two halves of the circle and paste them together on the big circle that is shown.
Worksheet
Curated OER

Circle Proofs

For Students 10th
In this circle proofs worksheet, 10th graders complete 4 different problems that include circle proofs. They respond to each of the questions that deal with circle proofs. Then, students read the given information and use the circle...
Worksheet
Curated OER

Circles

For Students K
In this shape activity, students focus on the shape of a circle. Students study 8 pictures and put an x on those that have the circle shape.
Worksheet
Curated OER

Circle Shapes

For Students K - 1st
In this shape activity worksheet, students trace the circles on the tree and color them red. Students then trace the 3 large circles at the bottom of the page.
Worksheet
Curated OER

Grape Circles

For Students K - 1st
For this coloring shapes worksheet, students trace the circles in the grapes and color them purple. Students then trace the circles and triangles at the bottom of the sheet.
Worksheet
Curated OER

ChickaBoom ABC Circle Puzzle

For Students K - 2nd
In this ChickaBoom abc circle puzzles worksheet, learners view a circle puzzle for each letter of the alphabet, cut out the circle puzzle, cut the lines inside into pieces, and solve each puzzle with the same upper case and lower case...
Worksheet
Curated OER

Geometric Shapes: Square, Rectangle, Circle, Triangle

For Students 2nd - 3rd
In this math activity, students learn to recognize the square, rectangle, circle and triangle and discover the attributes of each. There are 15 pages available here.
Worksheet
Curated OER

Circle the Verb

For Students 7th - 9th
In this grammar worksheet, students circle the appropriate verb in parentheses that makes twenty-five sentences grammatically correct.
Worksheet
Curated OER

Circle the Words From the Readings

For Students K - 1st
In this reading comprehension worksheet, students read a paragraph. They circle pictures of items that are mentioned in the readings. There are four paragraphs on this worksheet.
Activity
Florida Center for Reading Research

Phonics: Letter Recognition, Clip-A-Letter

For Teachers K - 1st Standards
Young scholars show what they know about the alphabet. With two circles—one surrounded by capital letters and one with lowercase—pupils use clothespins to match letters, case to case or the opposite. 
PPT
Curated OER

Waves

For Teachers 9th - 12th
Although this was written to accompany a specific textbook, the information can illustrate wave motion for any advanced level physics course. The slides are simple, use plain but colorful fonts, and include diagrams and pictures to...
Worksheet
2
2
K12 Reader

Shapes on a Plane

For Students 2nd - 3rd Standards
Geometric shapes are the focus of a comprehension exercise that asks readers to examine a short passage about planes, circles, triangles, and rectangles, and then to respond to a series of questions about the article.
Worksheet
AJ Reynolds

Unit 5 Section 2: Measuring Angles

For Students 4th - 6th Standards
An interactive assignment displays two example angles to teach how to measure them. When you click on the angles, a protractor appears! As practice, learners view a set of angles, estimate the size of each, and then enter the degrees in...
Lesson Plan
Curated OER

Applied Science - Science and Math (K) Lab

For Teachers K
In this shape lesson plan, learners cut out tangram shapes and create different pictures with them. They look at 3-D shapes as well. There is a nice, hands-on component built into this lesson plan.
Worksheet
Curated OER

Find the Words

For Students Pre-K - K Standards
Pre-readers need to build a foundation of word recognition using visual worksheets like this one. They examine six simple words accompanied by pictures, circling each word. See if pupils know what each word is, using the pictures as...
Worksheet
Curated OER

Find the Words

For Students Pre-K - K Standards
Before kids become readers, they can build foundational pre-reading skills using visual worksheets like this one. Learners examine six words with corresponding pictures, circling the words and guessing what they say. They use the images...
Worksheet
Curated OER

Find the Rhyme

For Students Pre-K - K Standards
Which one rhymes? There are four starting objects here, each heading a row of three objects. Learners identify the objects and their vowel sounds to determine which one rhymes with the first object. All these rhyming words involve the...
Instructional Video15:48
2
2
Flipped Math

Sectors and Segments

For Students 9th - 12th Standards
It's a piece of pizza! Pupils learn about a sector of a circle as a slice of the circle and determine how to find its area. Scholars continue to find out how to calculate the segment of a circle based on the sector's area. At the end,...
PPT
Curated OER

Guess the Shape

For Teachers 3rd - 4th
How well does your class know their shapes? This interactive shape quiz provides learners with four clues which they will use to determine identify each shape. This is an excellent way to assess how well learners know their shapes and...
PPT
Curated OER

The Shape Show

For Teachers 1st - 2nd
Define plane shapes by their properties, then use this game to reinforce those skills. Learners use given properties as clues to determine each shape. They work to name ten different shapes, six of which are polygons.
Worksheet
Curated OER

Find the Same Word

For Students K Standards
Kindergartners practice their vowel sounds and word recognition with a simple, straightforward learning exercise. They read one word in a row and circle the same word in a group of four. 
Lesson Plan1:00
Mathematics Assessment Project

Modeling Motion: Rolling Cups

For Students 9th - 12th Standards
Connect the size of a rolling cup to the size of circle it makes. Pupils view videos of cups of different sizes rolling in a circle. Using the videos and additional data, they attempt to determine a relationship between cup...
Assessment
Concord Consortium

Bicycle Chain

For Students 10th - 12th Standards
Model a bicycle chain with circles and tangent lines. Given the dimensions of the sprocket wheels, young scholars calculate the length of the chain that surrounds them. A second task has learners write a function for the length of a...
Interactive
PHET

Trig Tour

For Students 9th - 12th Standards
Unit circles and trigonometric graphs go hand in hand. Pupils see how traversing the unit circle allows for the creation of graphs for trigonometric functions. They also see trigonometric ratios in terms of the ordered pairs of points on...

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