Curated OER
Areas of Geometric Shapes with the Same Perimeter
A triangle, square, hexagon, and circle all have a perimeter of one unit. Eighth graders must attempt to find the area of each and arrange them in order from least to greatest areas. A terrific task for applying four different area...
Curated OER
Areas of States - Estimation
Students estimate the area of states using the formulas for the areas of rectangles, squares, and triangles. In this geometric shapes lesson, students divide irregular shaped states into shapes. They use the formulas for areas of...
Curated OER
Regular or Irregular Polygons
In this geometry skills worksheet, students respond to 6 questions that require determine whether 6 geometric shapes are regular or irregular polygons.
Curated OER
Regular or Irregular Polygons
In this polygons activity, students decide whether each shape is a regular polygon or an irregular polygon. Students complete 6 problems.
Curated OER
Activity Plan 5-6: Searching for Shapes
Students explore the shapes all around them. In this early childhood lesson plan, students use their creative thinking skills to compare shapes to the form ob objects in their classroom.
Curriculum Corner
Area and Perimeter
Get third graders excited to work find area and perimeter of unit squares, rectangles, and irregular shapes. A 36-page packet comes with task cards, graphic organizers, practice worksheets, printables with squares, exit tickets, and word...
Curated OER
Perimeter and Area of Irregular Figures ELL 16.5
In this finding area activity, students solve the area of an irregular figure by reading and performing step by step operations. Students complete fourteen steps to solve and summarize finding the area.
Curated OER
Area of Regular Quadrilaterals
Can your class calculate the area of a regular quadrilateral? They can now, with this handy presentation which provides an explanation, the formula, and examples of finding the area of a regular 2-D shape.
Math Worksheets Land
Recognize Area as Additive - Independent Practice Worksheet
Activate your geometer's minds with area calculations, some of which are tricky. First, they solve five word problems dealing only with rectangular shapes. The next five use irregular shapes with side measurements given. Scholars solve...
iMagine Machine
The Land of Venn - Geometric Defense
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.
Curated OER
Guess My Shape
Students describe shapes to other students who have to guess that shape. In this shape lesson plan, students describe shape attributes to other students. Then those other students have to guess the shape that is being described to them....
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Geometric Shapes at the OK Corral
Students explore geometry by utilizing computer software. In this shape identification lesson, students define several geometric shapes by the characteristics that classify them. Students draw and cut out geometric shapes using their...
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Perimeter of Irregular Shapes
In this geometry worksheet, 10th graders figure the perimeter of polygons using the sides given. They add all the different sides up to calculate the perimeter.
Curated OER
Pick's Theorem
In this Pick's Theorem activity, students solve and graph 6 different problems that include using Pick's Theorem to solve. First, they use Pick's Theorem to determine the area of the shapes given as well as their own shapes drawn. Then,...
Statistics Education Web
It Creeps. It Crawls. Watch Out For The Blob!
How do you find the area of an irregular shape? Class members calculate the area of an irregular shape by finding the area of a random sampling of the shape. Individuals then utilize a confidence interval to improve accuracy and use a...
Curated OER
Footprints: Take a Step into Estimation
Compare sizes of student footprints with those of elephants and sauropod dinosaurs! Upper graders make estimations of the areas of irregular shapes; students use grids to make and explain estimates within low and high ranges.
Curated OER
Displacement and Density
High schoolers explore displacement. In this displacement and density lesson plan, pupils find the volume of irregular shaped objects. Afterward, they determine the volume of containers. They compute the amount of water displacement.
Curated OER
Area Explorations
Students explore the concept of area. In this area lesson, students find the area of irregular shapes with right angles. Students break down each irregular shape into multiple regular shapes in order to find the area. Students...
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Geometric Shapes at the OK Corral
Students explore regular geometric shapes. In this shapes lesson, students investigate geometric shapes in the world around them. Students differentiate between regular and irregular shapes.
Curated OER
Sphere Dressing
Geometric design makes a fashion statement! Challenge learners to design a hat to fit a Styrofoam model. Specifications are clear and pupils use concepts related to three-dimensional objects including volume of irregular shapes and...
Curated OER
Measurement-A Common Language: Volume
In this volume instructional activity, students take notes on the various ways to measure volume depending on if the substance is liquid, an irregular shaped solid, or a regular shaped solid.
Curated OER
Name Each Shape
In this math worksheet, learners analyze 15 pictures of geometric figures and match them to the names which are provided in a word bank. Students tell how many lines of symmetry each shape has.
Curated OER
Mass and Density of an Irregular Solid
In this physics worksheet, students determine the density of irregular solids using water displacement method to complete 7 problems and short answer questions.
101 Questions
Coffee Traveler
Investigate the volume of irregular figures in an inquiry-based exercise. Presented with an irregularly shaped box filled with water, learners must predict the level of water when it is tipped on its side. The class can divide the figure...
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