Curated OER
Straws and Shapes
Students investigate the concepts related to observing two dimensional objects. They also build three dimensional objects using the two dimensional objects. The students give an oral or written explanation for how the pieces fit together...
El Paso Community College
Geometry Definitions
Geometry is full of shapes, figures, and corresponding things here and there. The guide shares all of the key pieces of geometric information in a nicely color-coded and labeled sheet.
Curated OER
Mandalas, Polygons and Symmetry
Students create a geometric pattern using mandalas, polygons and symmetry. For this geometry lesson, students analyze the mathematics involved in making the mandalas, including the shapes and symmetry. Students create their own mandalas...
Curated OER
Brain Teaser- How Many Triangles?
In this geometry instructional activity, students examine a picture that has many hidden triangles. Students count the triangles they discover and color the picture.
Curated OER
Sides and Vertices of Shapes
In this sides and vertices activity, students identify how many sides and vertices various shapes have. A reference web site is given for additional activities.
Curated OER
Task: Grain Storage
Farming is full of mathematics, and it provides numerous real-world examples for young mathematicians to study. Here, we look at a cylinder-shaped storage silo that has one flat side. Given certain dimensions, students need to determine...
Curated OER
Social Studies: Adinkra Printing
First graders demonstrate a sense of artistic composition by creating shapes and symbols in the pattern of African Adinkra printing. They use glue to create a raised design and then print it on colored paper. Students use symbols from...
Curated OER
Basic Right Triangles
Elementary schoolers examine the attributes of triangles. In this triangle activity, learners compare regular triangles and right triangles. They explore vertices and angles and investigate obtuse and acute angles. Pupils draw multiple...
Curated OER
Patterns Here, There, and Everywhere!
Upper graders access the Microsoft Word program and create patterns by utilizing certain keys on the keyboard. They create picket fences, smiley faces, and hearts. It seems that this lesson has as much to do with keyboarding skills as it...
Curated OER
Classify Quadrilaterals
Here is a quadrilateral activity in which learners choose words that describe shapes, words to complete sentences that describe shapes. A reference web site is given for additional activities.
Curated OER
Let's Play Mathematical Baseball
Students explore the concept of spelling geometric terms and words with number prefixes. In this spelling geometric terms and words with number prefixes lesson plan, students play a game of baseball. Students spell words correctly to...
PBS
Geometry: Hide and Seek
A geometry game that resembles Battleship is the foundation for hide and seek where "hiders" draw shapes on coordinate planes and "seekers" must guess the shape and its location based on questions and clues. Reproducible, paper-sized...
National Security Agency
Classifying Triangles
Building on young mathematicians' prior knowledge of three-sided shapes, this instructional activity series explores the defining characteristics of different types of triangles. Starting with a shared reading of the children's...
Curated OER
Geometry in Art
Students recognize and measure geometric shapes within abstract art. They examine quilts for shapes and they each make their own quilt from squares using geometry and measurement.
Curated OER
Geometry in Art
Students examine mathematical symbols and formulas included in works of art. They analyze quilts for shapes and they each make their own quilt from squares using geometric shapes.
Curated OER
Marshmellow Geometry
Students explore a variety of geometric shapes, name them, and list their characteristics. The shapes are transposed into structures and checked for accuracy.
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