Curated OER
Triangle Inequality
Students discover that the sum of the lengths of any two sides of a triangle must be greater than the third side. They are shown how a triangle is formed using three strips such as that the triangle is seen inside the strips.
Curated OER
Perimeters, Patterns, and Conjectures
Learners discover patterns and write conjectures relating to perimeters and polygons. Working in cooperative learning groups, they use manipulatives and graphic organizers to solve problems then answer a series of questions in which they...
Shodor Education Foundation
An Introduction To Quadrilaterals
Young geometers investigate and apply properties of quadrilaterals. After a review and discussion of key terms, young scholars use a computer applet to explore four-sided figures and classify them according to their attributes. The...
Curated OER
Countries Involved in World War II
Students create their own floor map of Europe, Northern Africa, and the Pacific. They locate, identify, and speak for one of the countries involved. In addition, they classify the country they represent as an Axis Power or as an Allied...
Shodor Education Foundation
Triangle Area
While the lesson plan focuses on right triangles, this activity offers a great way to practice the area of all triangles through an interactive webpage. The activity begins with the class taking a square paper and cutting in in half; can...
Curated OER
Bubble and Boyle
Middle-schoolers still enjoy playing with bubbles! In this series of eight laboratory activities, science learners explore convex and concave surfaces, angles, gas laws, buoyancy, density and more!
Curated OER
The "Art" of Baseball
Young scholars investigate the art of baseball. In this sports lesson, students discuss their thoughts about the sport of baseball and create a baseball word list. Young scholars use pattern blocks and drawing paper to...
Curated OER
Different Minerals
In this minerals worksheet, learners read about the relationship between elements, rocks and minerals. They experiment using 6 different colored gumdrops to represent 6 common elements. Students construct gumdrop and toothpick models of...
Curated OER
Patterns & Balance
High schoolers compare and contrast the difference in the two sets of images and discuss the visual interest in the first set and the different visual interest created in the second set of prints.
Curated OER
Maximize It!
Students design a rectangular box without a lid that has the largest possible volume using the supplied sheet of centimeter graph paper. They work in groups to construct different size boxes to determine the largest possible volume and...
Curated OER
Geometry Flip Book
Students investigate the concepts of geometry that can be grouped into a flip book that can be used for teaching and review purposes. They define the differences between two and three dimensional figures. Also polygons are reviewed and...
Curated OER
Symmetry
Students make a design with pattern blocks and then pass them on to the rest of the class. They have to make them symmetrical and complete the design.
Curated OER
Drawing Fish
Students practice creating art by imitating the camouflage of fish. In this animal characteristic lesson, students identify certain fish and their ability to change colors in order to survive in the wild. Students utilize coloring...
Curated OER
Slope Right Up
Learners use triangles to find the length and slope of each side. After connecting the vertices, they add points based on their specific instructions. They use the Pythagorean Theorem to complete a worksheet to end the lesson.
Curated OER
Let the Matrix Do It
Learners create a matrix of the vertices of a triangle and produce new matrices that dilate, translate, rotate, and reflect the original triangle. After multiplying each matrix by a new scale factor, they graph the new matrix and...
Curated OER
The Great Barracuda
Students explore oceanography by researching the great barracuda. In this animal life lesson, students read several vocabulary terms dealing with ocean life and examine a drawing of a barracuda. Students examine the many...
Curated OER
Does the Area of the Quadrilateral Change?
Students study area and quadrilaterals. In this multiplication and area lesson, students use Polystrip models to change rectangles to form different parallelograms. Students find the area of the models use a Geometer Sketchpad to find...
Curated OER
Does the Area of the Quadrilateral Change?
Seventh graders complete activities to further their understanding of area formulas. In this area lesson, 7th graders watch as the teacher uses Polystrips to model parallelograms. Students find the area of a rectangle and answer...
Curated OER
Area of Complex Figures
Fifth graders use formulas for calculating areas of squares and rectangles to find area of complex figure, compare their own ideas with their classmates' ideas, and recognize that there are multiple methods for finding area of complex...
Curated OER
Attributes and Patterns with Buttons
Students work with attribute buttons in order to sort, create, and analyze patterns. Students practice identifying patterns and verbalizing the sorting rules and patterns they used. Sample assessments and rubric are provided.
Curated OER
A View of Amsterdam
Students are introduced to the process of etching during Rembrandt's time. Using a painting of Rembrandt, they answer questions related to it and how the painting makes them feel. They define and demonstrate perspectives and observe...
Curated OER
Area, Surface, and Volume
Ninth graders demonstrate application of area, surface, and volume. They apply formulas to a model of the classroom so they can determine the volume and surface area of the classroom.
Curated OER
Forces and Motion Scavenger Hunt
Students determine how force on an object affects its movement. In this force and motion lesson plan, students take digital pictures of objects in the school setting that are pushed and pulled. They develop a presentation using the...
Curated OER
Investigation of Pot Sherds
Fourth graders review their prior knowledge on the concept of pi. Using broken pieces of pottery, they calculate the circumference from a section of the circle. In teams, they compete against one another to get the most accurate...