Lesson Plan
Curated OER

Exploring the Properties of Rectangular Prisms.

For Teachers 9th - 10th
Students define properties of rectangular prisms. In this geometry lesson, students identify the relationship between two and three dimensional objects. They use Cabri technology to graph their figures.
Lesson Plan
Curated OER

Patchwork Math

For Teachers 3rd - 5th
Students recognize and identify shapes in their environment. They investigate why objects can be composed of several different shapes. They follow a pattern to recreate designs using various shapes.
Lesson Plan
Curated OER

Circle, Secants

For Teachers 9th - 11th
Young scholars identify the secant segment of a circle. For this geometry lesson, students investigate secant lines formed outside the circle. They use Cabri software to create drawings and explore circles and secants.
Lesson Plan
Curated OER

Exploring Chords: Products of Chord Segments

For Teachers 7th - 10th
Students identify the properties of chords. In this geometry lesson, students multiply chord segments to find the solution to their problem. They construct two chords that cross on  a circles.
Lesson Plan
Curated OER

The Search for Pythagoras' Treasure

For Teachers 8th - 10th
Students identify and define properties of triangles. In this geometry lesson, students identify the missing sides and angles of right triangles. They use the rules of the Pythagorean Theorem to solve their problems.
Lesson Plan
Curated OER

Incredible Edible Bridges

For Teachers 7th - 10th
Students create a bridge using engineering and geometric concepts. In this geometry activity, students identify the missing measures of polygons sides and angles. They work together to solve real life situation using problem solving...
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

Animal Tracks

For Teachers 4th - 5th
Students are introduced to the topic of area. In groups, they share various techniques to help them identify different shapes and work together to calculate the area. They use this same knowledge to determine the area of animal tracks...
Lesson Plan
Curated OER

Surface Area of Prisms

For Teachers 9th - 11th
Learners calculate the surface area of different prisms. For this geometry lesson, students identify the shapes of solids based on the properties of that solid. They calculate the surface area using nets and properties of prisms.
Lesson Plan
Curated OER

Surface Area of Pyramids

For Teachers 9th - 12th
Learners identify the surface area of pyramids and other polygons. In this geometry lesson, students find the different measurements for the different parts of a polygon. They use the surface area formula to solve for the surface area,
Lesson Plan
Curated OER

Geometric Solids

For Teachers K
Students identify and create simple geometric shapes and describe simple spatial relationships. Through discussion, hands-on activities and show and tell, they identify geometric solids in real life and create graphs of commonly found...
Lesson Plan
Curated OER

Inscribed Quadrilaterals and Parallelograms

For Teachers 9th - 10th Standards
Students differentiate between inscribed quadrilaterals and parallelograms. In this geometry lesson, students identify the shaped of the polygons when it is inscribed inside of a circle. They calculate the missing angles of the inscribed...
Lesson Plan
Curated OER

Theme Sculptures: Offering Reconciliation

For Teachers K - 12th
Learners create 3-dimensional works in clay. In this sculpture lesson, students discuss a theme and create a sculpture based on that theme. Learners express personal ideas and feelings through the arts.
Lesson Plan
Curated OER

Euler Characteristic

For Teachers 9th - 11th
Students identify the different properties of Euler's Characteristics. In this geometry instructional activity, students identify the shape and surface a polygon. They relate the concept of Euler to solving real world problems.
Lesson Plan
Curated OER

Modern Mosaics (Grades 9-12)

For Teachers 9th - 12th
Students explore the elements of contrast, emphasis, pattern, and color schemes by identifying how the artist manipulated tesserae in the mosaic. They create original mosaics by manipulating torn paper to depict different textures and...
Lesson Plan
Curated OER

Classification in Action

For Teachers 9th - 12th
Students work with a set of objects to set up both quantitative and qualitative classification systems. As a group, students follow an example to design and complete two classification systems using a set of objects provided. ...
Lesson Plan
Curated OER

Triangles and Quadrilaterals

For Teachers 2nd
Second graders explore triangles and quadrilaterals. They rotate to various centers in the room to identify and examine triangles and quadrilaterals. After presenting a picture to the class, 2nd graders locate right angles, triangles...
Lesson Plan
Curated OER

Scalene Triangles

For Teachers 5th
Fifth graders identify and classify scalene, equilateral, and isosceles triangles. In this triangle lesson plan, 5th graders define the different attributes of 3 types of triangles and sort them by descriptions and...
Lesson Plan
Pennsylvania Department of Education

Extending Pattern Understandings

For Teachers Pre-K - 2nd
Learners use shapes and manipulatives to demonstrate patterns. In this patterns lesson plan, students also break up patterns to identify a pattern unit.
Lesson Plan
Curated OER

Geometry in Tessellations

For Teachers 3rd - 12th
Students examine tessellations and their geometric properties. Students explore the concept of tessellations and lines, planes, angles, and polygons. Students experiment with the area and perimeter of polygons. Students analyze...
Lesson Plan
Curated OER

Spatial Relations - Week 9

For Teachers 10th - 12th
In this spatial relations worksheet, students identify the number of triangles in a given figure, identify the number of cubes that a plane intersects, and determine the number of line segments in a given cube. This three-page worksheet...
Lesson Plan
Curated OER

Measurement of a Central Angle

For Teachers 9th - 11th
Students calculate the measurement of a central angle. In this geometry lesson, students identify properties of circles. They use Cabri software to create and analyze graphs.
Lesson Plan
Curated OER

Mother Nature Pattern Maker

For Teachers K - 2nd
Students in a teacher education program enhance their awareness of patterns. They discover how to support their students in developing this skill in mathematical terms. They role play the role of a K-2 student and collect images from...
Lesson Plan
Curated OER

Perspective

For Teachers 4th - 8th
Students explain what is near and far in respect to the horizon line on a 2-d surface. They blend and use oil pastels correctly and explain the concept of a horizon line.