Worksheet
Mathster

Line and Rotational Symmetry

For Students 4th - 8th Standards
Challenge young mathematicians' understanding of symmetry. Provided with images of different shapes, letters, and national flags, students are tasked with identifying the lines of symmetry and order of rotational symmetry...
Lesson Plan
Willow Tree

Perimeter of Common Geometric Figures

For Students 8th - 11th Standards
Help learners understand that perimeter and circumference are one in the same. Learners apply their skills to determine the perimeter/circumference of triangles, rectangles, and circles. They then use the same strategy to find the...
Lesson Plan
Curated OER

"Geometry With Quilts"

For Teachers 5th
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.
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

Marshmellow Geometry

For Teachers 5th - 10th
Students explore a variety of geometric shapes, name them, and list their characteristics. The shapes are transposed into structures and checked for accuracy.
Lesson Plan
Curated OER

Geo-Critters (Geometry Critters)

For Teachers 2nd - 5th
Students read the book The Math Curse by Jon Scieszka and study geometry. In this geometry lesson, students identify geometric shapes and their properties. Students create a geo-critter.
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, students describe the properties associated with geometric shapes. Students develop spatial sense and the mathematical meaning...
Lesson Plan
Curated OER

Geometry

For Teachers 9th - 11th
Students are introduced to the basics of Geometry. Using cutout shapes, they identify whether they are polygons by using the properties of polygons. They practice drawing shapes they are going to be using on an everyday basis and...
Lesson Plan
Curated OER

Identify triangles

For Teachers 9th - 10th
Students explore triangles. In this geometry instructional activity, students will create note cards with pictorial depictions of right, acute,obtuse, scalene, isosceles, equilateral and equiangular triangles. Students will verbally...
Worksheet
Curated OER

Geometry Worksheet #13

For Students 10th
In this geometry worksheet #13 worksheet, 10th graders work in groups to solve 6 geometry problems, involving measurement of angles.
Lesson Plan
Curated OER

"School Shape Scavenger Hunt"

For Teachers 2nd - 5th
Students, in groups, venture onto the schoolground on a scavenger hunt for shapes. They are given tasks: recorder, team leader, presenter, reporter, and behavior guidelines and a time limit. They search the school for shapes found in...
Lesson Plan
Curated OER

Circles, Rectangles, Squares, Triangles

For Teachers K
Students identify, compare and classify the various shapes. In this shapes instructional activity, students listen to descriptions of shapes with words such as sides, angles, congruent, and parallel. Students then give the teacher...
Lesson Plan
Curated OER

The Greedy Triangle

For Teachers 3rd - 4th
Learners discuss figures with various numbers of sides.  In this geometry lesson plan, students are read The Greedy Triangle by Marilyn Burns, they participate in a class discussion of many sided figures and are introduced to the...
Lesson Plan
Curated OER

Investigation: Shape Balance

For Teachers 2nd
Second graders explore geometry by utilizing pattern blocks. In this shape identification lesson, 2nd graders view the characteristics for several different geometric shapes and create them using building blocks and other classroom...
Lesson Plan
Curated OER

Triangles in Architecture

For Teachers 10th - 12th
Students find triangles in the real world. In this geometry lesson, students analyze and identify properties of two and three-dimensional objects. They differentiate between similarity and congruence.
Lesson Plan
Curated OER

Ship Shape

For Teachers 2nd
Second graders explore shapes. After reading books about shapes, 2nd graders describe the properties of various shapes. They identify shapes if they have been rotated, flipped, or slid. Students create shapes using drawings and geoboards.
Lesson Plan
Curated OER

Geometric Shape Dances

For Teachers K - 4th
Students use movement and dance in order to strengthen mathematical understanding of different geometric shapes. The movements are imitating the drawing of shapes and they pick one to make into a dance. Upon beginning the dance music can...
Lesson Plan
Curated OER

Investigation: Area of Geometric Shapes

For Teachers 4th
Fourth graders explore geometry by utilizing pattern blocks. In this pattern lesson, 4th graders analyze two separate pattern block shapes and discuss which one is bigger and smaller. Students collaborate in small groups to create...
Lesson Plan
Curated OER

Investigation: A Train of Shapes

For Teachers K
Students explore geometry by utilizing stackable blocks in class. In this shape identification instructional activity, students discuss the different characteristics of squares, rectangles and circles while creating them with building...
Worksheet
Curated OER

Creating Shapes

For Students 4th - 5th
In this geometry skills lesson, students respond to 4 questions that require them to examine the pictured shapes and follow the instructions to create new shapes out of them.
Lesson Plan
Curated OER

Types of Triangles

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

Captain Invincible and the Space Shapes

For Teachers 1st - 2nd
Students identify geometric solids. In this geometric shapes lesson, students listen to the teacher read Captain Invincible and the Space Shapes  by Stuart J. Murphy. Students then visit a web site where they identify types of...
Worksheet
Curated OER

Family Activity: Triangles and Quadrilaterals

For Students 6th - 8th
In this triangles and quadrilaterals worksheet, students solve 7 short answer problems. Students find objects around the house that are constructed from triangles, parallelograms, trapezoids, squares, rectangles. Students sketch the...
Lesson Plan
Curated OER

Equilateral Triangles

For Teachers 4th - 5th
Students examine the attribute of equilateral triangles. For this equilateral triangle lesson, students examine a number of paper triangles to determine how they are classified. They determine how triangles are depicted in Navajo rugs.