CK-12 Foundation
Linear Pairs: Angles and Lines in a Perspective Drawing
Gain some perspective on linear pairs. Aspiring mathematicians adjust the vanishing point on a perspective drawing. They see the effect on linear pairs of angles and answer five challenge questions based on their observations.
Curated OER
Graph Paper Patterns
Young artists divide a piece of graph paper into sections using rectangles, squares, and triangles. They then fill each section with patterns of shape and color. Elementary graders describe how their patterns are organized. Secondary...
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Class of Gold
How can you see a number in nature? Here, learners discover both Fibonacci numbers and the golden ratio by exploring a number of different resources. Note: Some of the resources are older and may be missing some of the links, but...
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Are you in Golden Shape
Students solve and verify the solution for unknown measures. In this geometry lesson, students identify the properties of circles. They use the arc, angle and segment relationship to find the missing measures.
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Transformation Trio
Students identify the transformation and rotation of polygons. In this geometry lesson, students use picture to perform rotation, reflection and transformation. They identify the coordinate points of the new transformation.
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Tessellations
Seventh graders investigate geometric shapes using tessellations. In this geometry instructional activity, 7th graders practice tessellations using different shapes. They create different designs using tessellations.
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Equations in Motion: Design and construct a mobile
Students participate in a lesson plan that covers the concepts of solving equations and inequalities. To master the concept they must demonstrate visually and verbally how both sides of an equation must be balanced. They construct a...
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The Golden Ratio
Seventh graders investigate a ratio found in nature and in numerous pieces of artwork throughout history. The lesson is cross-curricular and builds a sense of appreciation of design for students.
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Symmetry in Paper Airplanes
Students explore symmetry. In this geometry and scientific inquiry lesson, students design paper airplanes with middle line symmetry, as well as right, obtuse, and acute angles. Students measure the plane's angles using a...
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Introducing Tessellations
Students create tessellations to increase their knowledge of the applications of geometry. They explore the different shapes of polygons.
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A World of Symmetry
Students identify lines of symmetry. In this symmetry lesson, students create objects and identify their lines of symmetry. They answer questions about lines of symmetry. Students cut shapes out of cookie dough and...
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Tessellating Ceiling Tiles
Learners transform polygons. In this tessellating instructional activity, students design a picture containing a translation and a rotation. They create a template of a translation or a rotation. Learners tessellate and...
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Social Studies: Renaissance
Students explore Renaissance architecture. In this Renaissance lesson, students view a slideshow featuring architecture of the era and then discuss the math skills used to the build the structures. Student build their own replicas of...
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Mathematical Models with Applications: Two-Point Perspective Drawing
Young scholars use interactive geometry exploration software (GES) to create a two-point perspective drawing. They explore basic geometry concepts in and geometric transformations of the model of a rectangular prism viewed from different...
Shodor Education Foundation
Visual Patterns in Tessellations
Geometers explore the concept of tessellations. They use a tessellation applet to manipulate shapes and design their own tessellation using the applet.
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What a Square
Students examine the painting "Old Man With A Gold Chain" by Rembrandt. They identify geometric shapes in the painting, measure these shapes and compare the relationships of these measurements.
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Rocketing in Math and Sciences
Students make a rocket out of paper. They follow the given instructions and test to see if it will fly. They write about the experiment and are given the opportunity to change their varibles to make their rocket work.
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Race The Rapper: Slopes
Learners calculate the slope of the equation In this algebra lesson, students graph coordinate pairs of linear equations and identify the relationship between x and y values and slope. They differentiate between functions and...
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Polygon Perimeters
Students define the terms polygon and perimeter to begin the lesson. Using a calculator, they practice determining the perimeter of various symbols in a painting. They discuss how geometry and art are related to one another.
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Polygon Perimeters
Students complete worksheets where they calculate the perimeter of polygons. In this perimeter of polygons lesson plan, students divide complex shapes into simple shapes to find the perimeter.
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6-8 Interior Design: Designing My Dream Room
Students analyze interior design as a profession. For this interior design lesson, students design their own dream bedroom and explore interior design as a profession. Students draw a scaled drawing using graph paper and appropriate...
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Describing an Object's Position
Learners explore language arts by participating in a shape identification activity. In this geometry shape lesson plan, students discuss the vocabulary terms used to describe the location of an object. Learners complete a worksheet based...
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Tantalizing Tessellations Lesson III: Creating a Slide Translation
Students watch and discuss an M. C. Escher video, use what they have learned to explain and apply their knowledge of tessellations in order to create a slide translation, present their findings in a 12" x 18" poster, and explore...
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Tantalizing Tessellations - Lesson I
Students complete a chart (KWL) as a pre-assessment, study the history of tessellations (tilings), investigate the properties of tessellations, and make and evaluate photographs of "found tessellations" for a PowerPoint/HyperStudio...