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24 resources with the concept irregular polygons

Videos (Over 2 Million Educational Videos Available)
Biography of Mary Cassatt for Kids: Famous Artists for Children - FreeSchool Video
4:59
Biography of Mary Cassatt for Kids: Famous...
Three-Dimensional Coordinates and the Right-Hand Rule Video
6:09
Three-Dimensional Coordinates and the...
Algebra 50 - Three Variable Systems in the Real World - Problem 2 Video
10:23
Algebra 50 - Three Variable Systems in the...
Other Resource Types (24)
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12 Items in Course
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Flipped Math: Geometry

For Students 9th - 12th Standards
Imagine taking a complete geometry course remotely! Eleven units make up the My Geometry course. Each unit follows the Flipped-Mastery cycle of learning, divided into two semesters. Pupils watch and take notes on a video that details the...
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37 Items in Unit
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Geometry Unit 5: Quadrilaterals and Polygons

For Students 9th - 12th Standards
One's knowledge of angles should measure up to expectations. Scholars watch a video to learn about angles in polygons. They first see how to partition a polygon into triangles to find the sum of the interior angle measures. They then...
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12 Items in Topic
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Math Antics Geometry Video Lessons

For Teachers 4th - 8th Standards
The point of this collection of 12 videos is to introduce learners to three basic parts of geometry—points, lines, and planes. The presenter provides definitions, shows how to classify shapes, provides examples, and shows how to use...
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Workbook
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Geometry

For Students 6th Standards
Shape one's understanding of geometry using the resource. The sixth of seven chapters in 6th Grade Math focuses on geometry principles. Future mathematicians learn to find the area of parallelograms, trapezoids, triangles, and other...
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Instructional Video4:01
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Classifying Polygons: Lesson

For Students 4th - 8th Standards
For your eyes only: classify the names of polygons. After providing the definition of a polygon, the video introduces the two major classifications of polygons, concave and convex. The segment of a larger playlist on geometry continues...
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Interactive
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Regular and Irregular Polygons: Polygon States

For Students 9th - 12th Standards
Colorado would probably object if Wyoming enlarged its borders. Scholars use an interactive map to change the borders of U.S. states to see how angles change. They then answer questions about regular and irregular polygons.
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Instructional Video7:27
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In 1 Collection
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Polygons

For Students 4th - 8th
What shapes classify as a polygon? The resource provides the definition of a polygon and provides examples of polygons and shapes that are not polygons. The presentation gives an explanation of why each shape falls into the particular...
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Lesson Plan
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Angles in Polygons

For Teachers 9th - 11th
Polygons — it's all about the angles. Groups work with dynamic geometry software to find the sum of the measures of the angles of various polygons. After finding the information for several polygons, the groups generate a formula that...
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Printables
1
In 1 Collection
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Unit 6 Math Vocabulary Cards (Grade 5)

For Students 5th Standards
Acute angles, nets, and vertices are only a few terms that a set of flash cards includes. Among the 108 cards, two types are available; word cards printed in bold-faced lettering, and corresponding definition cards equipped with an...
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App
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The Land of Venn - Geometric Defense

For Students 2nd - 5th Standards
Young mathematicians use their geometry skills to save the Land of Venn in an engaging math game. A fun way to reinforce children's understanding of basic geometric figures and shapes.
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Worksheet
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Area and Perimeter of Irregular Shapes

For Students 3rd - 6th Standards
Evaluate young mathematicians' understanding of area and perimeter with this series of three assessment tasks. Challenging learners to not only calculate the area and perimeter of irregular shapes, but to explain in writing their...
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Lesson Plan
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Awesome Area - Geometry and Measurement

For Teachers 2nd - 4th Standards
Break out those math manipulatives, it's time to teach about area! Capturing the engagement of young mathematicians, this three-lesson series supports children with learning how to measure the area of squares, rectangles, and other...
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Unit Plan
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A Five Day Approach to Using Technology and Manipulatives to Explore Area and Perimeter

For Teachers 3rd - 6th Standards
Young mathematicians build an understanding of area and perimeter with their own two hands in a series of interactive geometry lessons. Through the use of different math manipulatives, children investigate the properties of rectangles,...
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Lesson Plan
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Areas and Volumes - 2D Shapes

For Teachers 3rd - 6th Standards
Unfortunately for young mathematicians, the world isn't made entirely of parallelograms, triangles, and trapezoids. After first learning the area formulas for these common shapes, young scholars apply this new knowledge to determine the...
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Unit Plan
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Area and Perimeter of Regular and Irregular Polygons

For Teachers 3rd - 6th Standards
Extend young mathematicians' understanding of area with a geometry lesson on trapezoids. Building on their prior knowledge of rectangles and triangles, students learn how to calculate the area of trapezoids and other irregular...
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Lesson Plan
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Jack and The Beanstalk Estimation

For Teachers 2nd - 3rd
Introduce the day's lesson plan by reading Jack and The Beanstalk by Richard Walker, and then review the concept of area with your class. We don't always need rulers to measure, though! Teach learners how to use their hands to help us...
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Worksheet
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Geometry: Calculating Perimeters

For Students 9th - 12th
In this perimeter worksheet, students find the perimeter of 3 polygons. Students find the perimeter of irregular polygons given various side lengths.
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Lesson Plan
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Stained Glass Polygons

For Teachers 4th - 6th
Learners follow directions to make a stained glass window design of regular and irregular polygons with specific geometric elements. In this geometry lesson plan, students also analyze other classmate's designs.
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Lesson Plan
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Plane Figures

For Teachers 5th
Fifth graders create polygons requested by their teacher. In this polygons instructional activity, 5th graders watch a video and listen to a song about polygons. Then, students take turns labeling various polygons and practice making...
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Lesson Plan
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Chinese Tangrams

For Teachers 7th - 8th
Students research the history of Chinese tangrams and complete tangram activities. In this tangram lesson, students complete Internet research to learn the history of Chinese tangrams. Students construct a set of tangrams, compare the...
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Worksheet
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Regular or Irregular Polygons

For Students 6th - 8th
In this geometry skills instructional activity, middle schoolers respond to 6 questions that require determine whether 6 geometric shapes are regular or irregular polygons.
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Worksheet
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Regular or Irregular Polygons

For Students 3rd - 4th
In this polygons worksheet, students decide whether each shape is a regular polygon or an irregular polygon. Students complete 6 problems.
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Lesson Plan
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Perimeter of Polygons

For Teachers 8th
Eighth graders discuss perimeter by relating it to the path they would take while walking their dog around a park. They find the perimeter of regular polygons and one irregular polygon. Students use graph paper to draw their own examples...
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Worksheet
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Quadrilaterals and Other Polygons

For Students 6th - 7th
In this quadrilaterals and other polygons worksheet, students name various polygons and then decide if each polygon is a quadrilateral. Students also decide is certain polygons regular or irregular.