Curated OER
Area Applet
Elementary math classes calculate the area of a shape and explain the correlation between the size of the perimeter and the areas that can be contained within that perimeter. They also explain the effect the shape of the perimeter has on...
Curated OER
Net "Working"
Upper elementary and middle schoolers explore the properties of various polygons. They use video, resource links, and engage in hands-on activities in order to construct geometric nets. This fine plan should lead to increased...
Curated OER
Connecting Formulas Related to Geometric Figures
Students identify diagrams of quadrilaterals and circles by different names and classify the figures. They name the areas for each diagram and practice solving the formulas for each.
Curated OER
Angles - Unlocking Geometry
Students investigate the concept of angles and how they are used in geometry. They construct polygons using various types of angles and then classify them according to their physical properties. Students use a computer program in order...
Curated OER
Classifying Rocks
A well-designed lesson plan on rock classification awaits you. In it, fifth graders are divided into groups. Each group is given a box of rocks which they must sort into two categories. They use the "Rock 'n Roll Rule," in making their...
Math Drills
Classifying Prisms and Pyramids
Young geometers identify prisms and pyramids based on the number of edges they have. Answers vary from hexagonal and rectangular prisms to pentagonal and octagonal pyramids.
CK-12 Foundation
Polygon Classification
Polly want a polygon? Young mathematicians sort shapes using an interactive. They classify the shapes as convex polygons, concave polygons, or not polygons.
Glynn County School System
Other Galaxies
The Milky Way belongs to a cluster of galaxies called the local group and it could be considered our neighborhood! Use the PowerPoint to present information on the different galaxy types, both local and farther away. Scholars learn how...
K12 Reader
Classifying Triangles
Bring math and reading informational text together with a reading comprehension lesson. After kids read about isosceles, scalene, and equilateral triangles, they answer five comprehension questions to demonstrate how they can use context...
Curated OER
Figure It Out - Polygons
Sixth graders explore different polygons. In this polygon lesson, 6th graders examine a rhombus, quadrilateral, parallelogram, and rectangles. Students compare and contrast polygons and research shapes on the Internet.
Curated OER
Isosceles Triangles
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...
Curated OER
Circles, Rectangles, Squares, Triangles
Students identify, compare and classify the various shapes. In this shapes lesson, students listen to descriptions of shapes with words such as sides, angles, congruent, and parallel. Students then give the teacher examples of shapes...
Curated OER
Triangles Introduction
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....
Curated OER
Classification
Learners gather and classify samples of a given item (rocks, fossils, seeds, etc.) They discuss various ways of classifying and that there are many different ways that are acceptable.
Curated OER
A Planet Full of Animals
Pupils explore a variety of animals that live on our planet. The shapes, sizes, colors, movements, and coverings of the animals are observed. The similarities and differences in the animals are grouped according to common traits.
Curated OER
The Grouchy Ladybug
Students learn about sorting and classifying objects by size while reading Eric Carle's "The Grouchy Ladybug". In this sorting and classifying lesson, students first listen to and interact with the story. They then look at cut-outs of...
Curated OER
Classifying Polygons Worksheet
In this polygons worksheet, students write the name of the polygon, and if it is not a polygon they write "none". Students complete 9 problems.
Curated OER
Primary Geometry
Young scholars identity simple geometric shapes. In this early geometry lesson, the teacher introduces students to triangles, squares, and rectangles, then young scholars identify and classify the shapes as they are found in the...
Curated OER
2-D Polygons
Students investigate the concept of two dimensional polygons. They complete a vocabulary chart with the teacher or in independently. Students are shown various polygons in order to classify them and then asked to draw one of them from...
Curated OER
Harriet's Halloween Sort
Students listen to the book, Harriet's Halloween Candy, and discuss the many ways Harriet sorted the candy from her trick-or-treat bag. They sort and classify individually wrapped candy.
Curated OER
Geometry Gymnastics
Students identify shapes and manipulate 2 and 3 dimensional objects. They view objects from different perspectives and review relative positions (near, far, between). They sing a shape song.
Curated OER
Surface Area with Polydrons
Students explore measurements by analyzing geometric shapes. In this surface area lesson, students identify the terms volume, weight, perimeter and area in order to find the requested measurements of specific polygons. Students utilize...
Curated OER
Sort it Out
Learners identify and sort a variety of two- and three-dimensional objects and compare and contrast their attributes. They identify shapes, locate shapes on the faces of solids, sort real objects and explain the sorting rule, and...
Curated OER
Draw It!
Pupils follow directions to make two- and three-dimensional shapes. Focusing on polygons, they use the shapes to solve real-world problems and review with the class. They read two of Shel Silverstein's poems and discuss the arrangements...