Curated OER
Properties of Special Quadrilaterals
Teach your mathematicians how to identify the properties of quadrilaterals. In this geometry lesson, students solve for missing angles and sides of a special quadrilateral. They use the TI to move the sides around and create different...
Curated OER
Investigating Shapes in Our World
First graders explore shapes. In this geometry lesson, 1st graders make shapes with geo-boards, use play-dough to make three-dimensional figures, and make a shape book using pre-cut shapes.
Curated OER
Travel Triangles
Young scholars demonstrate and understanding of the three types of angles using triangles and quadrilaterals. In this angles lesson plan, students learn about acute, obtuse and right angles. They use cut-outs to find the areas of...
Curated OER
Let's Learn about Symmetry
Students explore symmetry in architecture. In this cross curriculum art and architecture instructional activity, students fold paper to illustrate symmetry and identify symmetrical and asymmetrical shapes. Students...
Curated OER
Introduction to Classification
Fourth graders design a classification system to categorize animate and inanimate objects. They discuss the advantages of grouping things as they classify buttons, leaves, shells.
Curated OER
Powerful Polygons
Students scan the classroom to find different common shapes. They listen as the teacher defines polygon and regular polygon. The teacher demonstrates regular polygons via the Internet and the "Math is Fun" web site. Students go outside...
Curated OER
Junior Architects of America
Students create entries for the Architects of America contest, including a model of a futuristic structure, blueprints, a list of all plane and solid shapes in the structure, a persuasive argument paper that describes why the structure...
Curated OER
Rep Tiles
Third graders use pattern blocks of one shape at a time to try to create a similar shape. They compare the perimeter of the new figure with the perimeter of the original shape and look for a pattern. Students use the pattern to predict...
Curated OER
Area of Complex Figures
Fifth graders use formulas for calculating areas of squares and rectangles to find area of complex figure, compare their own ideas with their classmates' ideas, and recognize that there are multiple methods for finding area of complex...
Curated OER
"Geometry With Quilts"
Fifth graders examine the geometry of quilts. They discuss the history of quilting, design two nine-patch squares, exchange one design on an Internet bulletin board, and construct a hot pad that is quilted.
Curated OER
Getting Into Shape
Students recognize lines and corners as properties of geometric figures and identify shapes based on these characteristics. They move through a variety of stations practicing tossing, throwing, tallying and recording combinations of shapes.
Curated OER
Tetrominoes Cover-Up
Third graders compare and contrast the attributes of two-dimensional shapes. Using a tetrominoes game, they create two-dimensional shapes to cover up a game board. At the conclusion of the game, 3rd graders discuss the patterns they...
Curated OER
3D Houses
Students construct 3-dimensional structures from 2-dimensional paper. They design and compile their structures to resemble a neighborhood community.
Pennsylvania Department of Education
Classifying Figures on the Coordinate Plane
Fifth graders use estimation to solve word problems. In this fractions instructional activity, 5th graders decide whether or not an answer to a work problem is reasonable by applying their knowledge of fractions, decimals and estimation....
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
Shape Detectives
Students become "shape detectives" as they identify, name, create and describe common shapes within pictures and objects found within the learning environment. Suggestions include incorporating shapes into all learning areas and daily...
Curated OER
Finding the Surface Area of Six Rectangular Pyramids
For this surface area worksheet, learners solve for the surface area or six rectangular pyramids given length, width, and height of the slant face. Solutions are provided.
Curated OER
Running Colors
Students play a game with mats of different shapes and colors spread out over a playing area. As a shape and color is called out students run the the corresponding mat and stand on it.
K12 Reader
Congruent Geometric Shapes
Here's a reading comprehension instructional activity that focuses on congruent geometric shapes. After reading a short article about congruent figures, kids respond to a series of comprehension questions.
EngageNY
How Do Dilations Map Angles?
The key to understanding is making connections. Scholars explore angle dilations using properties of parallel lines. At completion, pupils prove that angles of a dilation preserve their original measure.
Houghton Mifflin Harcourt
Unit 3 Math Vocabulary Cards (Grade K)
Help young mathematicians develop understanding of math concepts with a set of 16 math vocabulary cards. Each sheet contains two cards; the top card has the vocabulary word printed in bold text. The bottom card has a picture...
Houghton Mifflin Harcourt
Unit 1 Math Vocabulary Cards (Grade K)
A set of 24 math vocabulary cards enhances any math lesson for beginning readers. Each sheet contains two vocabulary words. The top card has the vocabulary word printed in bold text. The bottom card has a picture...
Curated OER
Area Explorations
Students explore the area of rectangles. They practice finding area by playing an onliine computer activity where they calculate the area of a rectangle to solve a problem.
Curated OER
Primary Geometry
Learners identity simple geometric shapes. In this early geometry lesson, the teacher introduces students to triangles, squares, and rectangles, then learners identify and classify the shapes as they are found in the classroom. To...