Lesson Plan
Curated OER

Triangles Introduction

For Teachers K - 3rd
Students explore geometry by drawing various shapes in class. In this triangle characteristics lesson, students identify the attributes that classify a shape as a triangle and practice using their bodies to create triangles in class....
Lesson Plan
Curated OER

Isosceles Triangles

For Teachers K - 2nd
Students investigate triangles. In this shapes geometry lesson, students define and state the attributes for equilateral, scalene, and isosceles triangles. Students locate the prefix "tri" in a variety of words and make connections with...
Lesson Plan
Curated OER

Six Squares

For Teachers K - 6th
Students create different shapes on grid paper.  In this two-dimensional geometry lesson, students take turns outlining a shape made of six squares on the graph paper.  They identify all shapes they see once everyone has had a...
Lesson Plan
Curated OER

Types of Triangles

For Teachers 1st - 2nd
Learners classify triangles by the length of their sides. In this geometry lesson, students use a white board to demonstrate the angles of various triangles. Learners construct an equilateral, isosceles, and a scalene triangle.
Worksheet
Curated OER

Match the Shape

For Students K - 2nd
For this geometry skills practice worksheet, students respond to 4 questions that require them to match everyday items as the geometric shapes they represent.
Lesson Plan
Pennsylvania Department of Education

Making Triangles

For Teachers Pre-K - 2nd
Students use interactive geoboards to identify simple geometric shapes. In this making triangles lesson plan, students describe the properties associated with geometric shapes. Students develop spatial sense and the mathematical...
Lesson Plan
Curated OER

Congruent Shapes

For Teachers 1st - 3rd
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...
Lesson Plan
Curated OER

Identifying Patterns

For Teachers K - 1st
Students investigate the elements of a pattern.  In this geometry lesson, students identify different shapes in a pattern and discover which shapes are missing in order to extend it.  Students create their own patterns using...
Lesson Plan
Curated OER

It Counts

For Teachers K - 2nd
Students explore one to one number correspondence. For this early math lesson, students make observations about and classify plants in order to gain an understanding of using numbers to describe their world.
Lesson Plan
Curated OER

Spacemobiles

For Teachers K - 4th Standards
Aspiring astronauts construct a space vehicle using cylinders, cones, spheres, and rectangular prisms. This is an engaging method of learning about three-dimensional shapes. Note that the word cylinder is constantly misspelled in the...
Lesson Plan
Curated OER

Mondrian, Math, and Amazing Colors

For Teachers K - 2nd
Students study geometric shapes, lines, and the primary colors as they create Mondrian-like art prints.
Worksheet
Curated OER

Shape Matching Worksheet - Black and White

For Students K - 1st
In this geometry activity, students draw a line from each geometric shape shown on the left to the matching shape on the right side of the page. They work with plane figures such as a triangle, an oval, a rectangle, and a hexagon.
Lesson Plan
Curated OER

Two-Dimensional and Three-Dimensional Shapes

For Teachers 1st
First graders explore 2-dimensional and 3-dimensional shapes. In this geometry instructional activity, 1st graders examine the attributes of 2 -dimensional and 3-dimensional shapes. They also create the shapes as they build models. This...
Worksheet
Curated OER

What Shape is This?

For Students K - 2nd
In this geometry skills worksheet, students respond to 6 questions that require them to examine geometric shapes and identify them as circles, squares, triangles, or rectangles.
Worksheet
Curated OER

Lines of Symmetry

For Students 1st - 3rd
In this geometry skills practice worksheet, students respond to 6 questions that require them to identify lines of symmetry.
Worksheet
Curated OER

Lines of Symmetry

For Students 1st - 3rd
In this geometry skills practice worksheet, students respond to 3 questions that require them to identify lines of symmetry.
Worksheet
Curated OER

Mixed Review

For Students 1st - 2nd
In this math worksheet, students solve the problems using the operation of addition to fill in the missing addends. They also apply some basic knowledge of geometry to solve the second set of questions.
Worksheet
Curated OER

Shapes

For Students K - 2nd
In this geometry learning exercise, students choose the correct name to match the shape given. Students identify the words for oval, rectangle, square, circle, triangle, and diamond.
Worksheet
Curated OER

2D Shapes for sorting into groups

For Students 1st - 2nd
In this geometry learning exercise, students cut out and sort nine shapes. Shapes have up to nine sides and angles. They can be sorted according to number of sides, angles or shapes with equal sides.
Worksheet
Curated OER

Cubes and Cylinders

For Students 1st - 3rd
In this geometry worksheet, students identify cubes and cylinders by coloring a given number of each shape red, green, blue, or yellow.
Worksheet
Curated OER

Shape Matching Worksheet

For Students K - 1st
In this geometry worksheet, students draw a line from each geometric shape shown on the left to the matching shape on the right side of the page. They work with plane figures such as a diamond, a square, a circle, and a triangle.
Worksheet
Curated OER

Shape Matching Worksheet - In Color

For Students K - 1st
In this geometry worksheet, students draw a line from each of four shape on the left to the matching shape on the right. They match colors and shapes which include a diamond, a circle, a triangle and a square.
Lesson Plan
Curated OER

Drawing with Shapes

For Teachers 1st
First graders combine different shapes to create an image.  In this geometry instructional activity, 1st graders utilize squares, circles, rectangles, triangles, and arc to draw a picture.  Students share their creation with...
Lesson Plan
Curated OER

Grandfather Tang's Story

For Teachers 1st - 4th
Students construct tangram patters. In this geometry lesson, students read the book Grandfather Tang's Story and visit various websites to practice covering figures with tangrams. Students attempt to construct animal shapes using puzzles.

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