Curated OER
The Trappings of Trapezoids
Students define trapezoids and their shapes. For this geometry lesson, students calculate the area of a trapezoid and a parallelogram. They use Cabri software to make investigations.
Curated OER
Investigating Trigonometric Ratios Through Similar Right Triangles
Students identify similar and congruent right triangles. In this geometry lesson, students use trigonometric ratios to identify missing sides and angles of a triangle. They differentiate similar and congruent triangles.
Curated OER
Circles And Cylinders
Students investigate some of the mathematical concepts involved in the study of circles. They first practice finding the circumference of a circle by finding the diameter and performing the calculation. The lesson delivery is done using...
Curated OER
Constructions and Loci
In this constructions and loci worksheet, students create a scale drawing of a running track. They identify the starting positions for a given race. Students bisect angles. They construct an angle trisector. This three page worksheet...
Curated OER
Linear Systems: Geometric Interpretation of Eigenvalues
In this geometric interpretation worksheet, students prove the exponentiation of a matrix and the Eigenvalues of an inverse. This two-page worksheet contains explanations, examples, theorems and two problems for students to solve.
Curated OER
Saving Strawberry Farm
Students explore U.S. History by analyzing the Great Depression. In this economic instability instructional activity, students read fictitious accounts of a farm dealing with the loss of a Strawberry Farm and discuss the reasons behind...
Curated OER
Compatible numbers to 20
Students practice theories dealing with equals sign used as a balance, inequality symbols and practice utilizing a box or some other geometric shape to represent an unknown number. They assess numeracy problems embedded in language-rick...
Curated OER
Water Treatment Plant Tour
Students define vocabulary related to geometry and calculate the volume. In this geometry lesson, students calculate flow rates, and volume as it relates to a water plant facility. They calculate the volume of three dimensional shapes...
Curated OER
Circles and Angles
Students identify tangents, chords and secants. In this geometry lesson, students graph circles and identify angles created by secant lines, tangent lines and chords.
Curated OER
Sampling Distribution of Sample Means
Learners collect data and crate a distribution sample. In this statistics lesson, students compare and contrast their collected data. This assignment requires the learners to be comfortable with navigating the internet.
Alabama Learning Exchange
Pattern and Practice
Young scholars learn how to make patterns. Students first display their prior knowledge of patterns before delving into the lesson. They complete a worksheet and participate in a web-based class activity. They work in cooperative groups...
Curated OER
Triangle Island
Students calculate the altitude of triangles. In the web based lesson plan, students explore the interior distance from a given point in a polygon to its side. They compute the sum of these lengths. Students read life...
Curated OER
Honing in on Hummingbirds
Students explore ruby-throated hummingbirds. In this cross-curricular hummingbirds instructional activity, students listen to the book The Mystery of the Missing Hummingbirds and choose related topics to research with a partner....
Curated OER
Triangles in My Life
Tenth graders investigate where in the real world triangles are used. In this geometry lesson plan, 10th graders write an essay describing where in their lives triangles are used. They can use food, buildings, clothing or anything...
Curated OER
They're Everywhere! They're Everywhere!
Students gain an appreciation of the polygons and polyhedrons around them that make their world one of order and strength. They build polygons and polyhedrons, and then construct airplanes out of polygons.
Alabama Learning Exchange
The Mean, Median, and Mode Chain Gang
Learners analyze a set of data. They work in cooperative groups and use chain links to identify the mean, median, and mode of the chain.
Curated OER
Investigation 9 - Bird Study
Fourth graders examine specific bird characteristics and become more aware of the ecosystems that support each bird. They engage in bird walks, mapping the areas where they find evidence of bird activity.
Curated OER
Shapes and Introduction to Geometry
Students make a quilt. In this geometry instructional activity, students discuss patchwork quilts and learn some different geometric shapes and patterns that are commonly used. Students explore designs with triangles and squares and then...
Curated OER
100 Patch Geometric Quilts
Students identify geometric patterns in quilts. In this geometry lesson, students view various types of quilts and identify the geometric shapes. Students construct one hundred patch paper quilts using geometric shapes.
Curated OER
Third Grade Geometry
Third graders describe 2D and 3D shapes. In this geometry lesson plan, 3rd graders watch a PowerPoint presentation showing the terms used when analyzing shapes: vertex, edge, angle, side, and face. They compare shapes to see what they...
Curated OER
Pyramid in The Desert
Students investigate the Sierpinski triangle and calculate the ratio and area of the triangle. In this fractals lesson, students calculate parts of a Sierpincki triangle. They use Google Earth to help them construct the different parts...
Pennsylvania Department of Education
Let's Learn Those Facts: Looking Back and Moving Forward
Students participate in an adding game. For this adding numbers lesson, students calculate the sum of the dice and remove a number from their activity sheet. Students who first removes the numbers is the winner.
Curated OER
What's My Rule for Sorting?
Students view objects sorted by one characteristic and name that characteristic. In this sorting rule instructional activity, students explore to find a new characteristic and write a description of that rule. In early grades...
Curated OER
Air -- Is It Really There?
Students work together to perform simple experiments discovering the properties of air. They share their results with their classmates. They examine how engineers use the properties of air to clean the air of pollutants.