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
Investigation - Can You Guess My Favorite Color?
Second graders explore a bag of mixed pattern blocks. As a class they discuss different attributes of these shapes. In this math instructional activity, 2nd graders search to find shapes that are similar by placing shapes on top of one...
Curated OER
Halves
Is it half? There are three sections to this introductory fractions learning exercise focusing on halves. First graders begin by coloring half of five basic shapes, each of which already is divided into two parts. Next, they examine four...
K-5 Math Teaching Resources
Pattern Blocks
Who needs to buy pattern blocks when you have this printable pattern block template? Including triangles, squares, trapezoids, rhombuses, and hexagons, this resource offers endless possibilities for teaching children about geometric shapes.
Curated OER
Quiz: Geometric Constructions-Congruence
In this congruent figures learning exercise, students answer ten true or false questions. A sample question reads: "Two triangles are congruent when their shape and size will be the same."
Math by Design
Transformations – Reflections
Scholars use interactive resources to figure out how to mathematically draw a reflection of a geometric shape viewed in a mirror. To conclude the activity, class members are asked to deduce the result of multiple reflections across...
Curated OER
Geo Jammin' - Day 2, Lesson 4: Sing a Song of Shapes
Learners learn five songs to define and develop understanding of the attributes of two- and three-dimensional figures and the meaning of mathematical terms. They classify objects as either two- or three-dimensional, through the use of...
Curated OER
Tile Patterns II: Hexagons
After learning that the sum of interior angles for triangles is 108 degrees, take it further to show that the sum of angles in any polygon is the same! Using hexagons, pupils practice finding the measure of the six congruent angles. Make...
Curated OER
Polygons in Symmetry: Animal Inventions
Fourth graders use polygons to create animal figures with symmetry. In this polygons and symmetry lesson, 4th graders create a symmetrical animal collage by cutting and gluing geometric shapes and figures from math activities.
Curated OER
Perimeter All Around
Students explore perimeter and area of regular and irregular polygons. They experiment with color squares and create different arrangements using the same number squares. Then they compare the area and perimeter measurements of each.
Curated OER
Can You Build It?
Students investigate the concept of perimeter. They design there own figure and measure the perimeter of it. The instructional activity is given the context of the shape being a path that is traveled by a ladybug. This provides the shape...
Curated OER
Common 2-D and 3-D Shapes
In this common 2-D and 3-D shapes worksheet, learners define and solve 8 problems related to 2-D and 3-D figures as shown. First, they look at each 4-sided 2-D shapes listed and mark which ones always have the same angles. Then, students...
Curated OER
Are We the Same?
Learners define and discuss symmetry, line of symmetry, and congruency. They cut shapes out of construction paper, identify the line of symmetry, and if they are symmetrical and/or congruent.
Curated OER
Congruent and Similar figures
Eighth graders explore congruent and similar figures. In this eighth grade geometry lesson, 8th graders use geoboards to create congruent and similar figures and explore the relationships between the sides and angles.
Curated OER
Congruent Shapes
In this geometry lesson, students trace the capital letter "T" in different directions to learn how a shape is congruent. Students trace this letter on a sheet of paper, then turn, flip it, and trace it in different
directions, only to...
Curated OER
Which Chocolate Is The Biggest?
Pupils investigate the concepts of area and perimeter with the use of chocolate bars. They calculate the perimeter and area of different size rectangle chocolate bars and record the statistics. Then students make a visual comparison...
EngageNY
Why Move Things Around?
Explore rigid motion transformations using transparency paper. Learners examine a series of figures and describe the transformations used to create the series. They then use transparency paper to verify their conclusions.
Exploratorium
Disappearing Act
Crafty critters are camouflaged to escape predators, and crafty science pupils can construct a camouflage demonstration. They work with a partner to show that as a camouflaged animal moves, it becomes more visible.
Curated OER
How Big is Barbie?
Students measure various dimensions of a male and a female dolls body and scale them proportionally to average human measurements. They calculate the appropriate scale factor (magnitude) to enlarge their doll and apply that scale factor...
Curated OER
Comparing Sizes And Shapes
Students compare, resize, and check various shapes by size using a comparison mat from the MathKeys program. Working in pairs, they place three similar shapes on the screen and state which is the largest and smallest in area. They also...
Curated OER
Marshmallow Geometry
Third graders create 2D and 3D shapes using marshmallows and toothpicks. In this geometry activity, 3rd graders create their shapes and document the number of faces, edges, corners, angles, and sides. They share one shape and its...
Curated OER
Math Vocabulary Letter Shapes
In this math vocabulary worksheet, learners match the math vocabulary definitions to the letter shapes. Students write in 8 words in the letter shapes.
California Academy of Science
Dry My Laundry!
Meant to be a pre-field trip lesson plan, this can also serve as a cute and simple activity to use when your little ones are learning about evaporation or surface area. The children cut tiny t-shirts out of paper towel material, wet...
Curated OER
Human Impact on the Environment and Pollution
Young scholars illustrate the impact humans have on the environment through analogies and models. They observe demonstrations of human impact and pollution and create a composite picture of how people can have an impact on their...