Math Salamanders Ltd.
2D Shape Sheet Trapezoids
In this trapezoids worksheet, students cut or count the number of trapezoids on the sheet. Students cut or count 15 different colored trapezoids.
Curated OER
Compare Area and Perimeter of 2D Shapes
In this area and perimeter worksheet, students compare area and perimeter, determining which shapes has the greater perimeter or area. A reference web site is given for additional activities.
Alabama Learning Exchange
Twisted Tangrams
Primary geometers create a picture using tangrams. For this geometry lesson, students read Grandfather Tang: A Tale Told with Tangrams, cut out their own tangrams, and choose a character from the story to make using their tangram pieces.
Freecloud Design
Mathmateer
Three, two, one...liftoff! Elevate math skills to new heights while having a blast. A great resource that combines entertainment and education for children of all ages.
Curated OER
Cylinder Volume Lesson Plan
Tenth graders define the formula for cylinders and use it to solve real world problems. For this geometry lesson, pupils differentiate between area, perimeters, 2D shapes, 3D shapes, and volume of prisms, cylinders and spheres. They...
Curated OER
Rotational Symmetry
In this math worksheet, students examine the shapes given in two dimensions. They determine which ones are symmetrical to each other.
Math Salamanders Ltd.
2D Shape Sheet Isosceles Triangles
In this isosceles triangle activity, students cut or count the triangles on this sheet. Students cut or count out 13 isosceles triangles that are all different colors.
Curated OER
Facial Symmetry
Learners study facial symmetry. They explore lines of symmetry, and create illustrations with multiple lines of symmetry.
Curated OER
Exemplary Plans, Engineer It!
Young scholars research tall buildings and identify the geometric shapes used in the construction of the buildings. They compare shapes and infer why some are better than others in building. They produce a multimedia presentation of...
Curated OER
Congruency Basics
Fourth graders investigate congruent shapes. In this congruency lesson, 4th graders explore examples of congruent shapes. Students determine how to check for congruency by sliding or flipping the shape.
Curated OER
What Shape is That?
Each country or group of people has created special places of worship. Children read a story about religious buildings and architecture and then make clay models of the buildings they like the best. The lesson has been written to...
Curated OER
Three- and Two- Dimensional Geometry
In this three- and two- dimensional geometry worksheet, 7th graders solve 12 various problems related to geometric shapes and measurement. They first use paper and a pencil to sketch the front, side, back, top and bottom views of each...
Mathematics Assessment Project
Representing and Combining Transformations
Transform your learners into master geometers with an activity that asks them to first complete an assessment task drawing the result after transformation of a given shape in the coordinate plane. They then use cards to...
Curated OER
Which figure?
In this 2D figure instructional activity, students pick which figure they are given. Students choose from 4 figures in each of the 4 problems they are asked.
Curated OER
Review of 2D and 3D Figures
In this 2 and 3 dimensional figures worksheet, students determine whether given shapes are regular or irregular. A reference web site is given for additional activities.
Curated OER
And The Twelfth One Is
Ninth graders play guess my shape (either describe or use a feely bag to introduce the 3 shapes in the problem.) As they are identified put them in an order as shown in the problem. As the students work on the problem in pairs teacher...
Curated OER
Reflections
Fourth graders become familiar with the use of the Geometer's Sketchpad. They examine and practice creating geometric shapes. Students identify shapes and explore the introductory functions of the Geometer's Sketchpad. They complete...
Cornell University
Constructing and Visualizing Topographic Profiles
Militaries throughout history have used topography information to plan strategies, yet many pupils today don't understand it. Scholars use Legos and a contour gauge to understand how to construct and visualize topographic profiles. This...
Curated OER
Ratios for Area and Volume
In this ratios for area and volume worksheet, students solve problems where they find the ratios for problems of shapes dealing with area and volume. Students complete 4 problems.
Curated OER
Constructions and Creations: Sturdy Structures
Have your class draw the plans and design a structure. Learners discuss and investigate the variables in the stability of a 2D and 3D model. They also consider how to add a circuit to the design. Afterwards, they present their work.
Curated OER
Praire Biome Models
Fifth graders, in groups, list the physical characteristics of a biome and think of ways in which animals might have to adapt to live there and make a biome mobile ball that show the different types of habitats that shape the praire biome.
Curated OER
Cut, Construct and Think - 4
Learners identify polygons. In this geometric shapes lesson, students identify and describe polygons. Learners create new shapes out of the shapes they are given.
Curated OER
Table Placemats
In this desktop place mat instructional activity, students refer to personalized resource sheets. The sheets include months, 3D shapes, 2D shapes, numbers, the alphabet, days of the week, and sight words.
Curated OER
Meet the Polygon Family
Fourth graders investigate regular polygons. In this regular polygon instructional activity, 4th graders explore the attributes of different polygons. Students work in groups to complete a KWL chart regarding polygons.
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