Lesson Plan
Illustrative Mathematics

Stained Glass

For Teachers 7th - 9th Standards
A complex question looking for the total cost of a stained glass window by calculating area and circumference of a circle. With detailed components, this activity will challenge your designers to figure out if they have enough money to...
Activity
Houston Area Calculus Teachers

Area and Volume

For Students 11th - Higher Ed
An AP calculus lesson begins with an activity to determine the volume of a solid using a cross-section. Next, learners review the ways to find the area between two curves , as well how to find the volume of a solid created...
Lesson Plan
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University of Colorado

Patterns and Fingerprints

For Teachers 6th - 8th Standards
Human fingerprint patterns are the result of layers of skin growing at different paces, thus causing the layers to pull on each other forming ridges. Here, groups of learners see how patterns and fingerprints assist scientists in a...
Activity
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Illustrative Mathematics

Hexagonal Pattern of Beehives

For Teachers 9th - 12th Standards
Young geometers and biologists investigate the math of nature in an activity that is just the bee's knees. Participants will study the tessellations of hexagons in a beehive, along with the natural rationale behind the specific shape....
Worksheet
Mt. San Antonio Collage

Isosceles Triangles and Special Line Segments

For Students 9th - 12th Standards
Under which conditions can a triangle be classified as isosceles? High schoolers practice identifying isosceles triangles and special line segments, including angle bisectors, medians of triangles, and perpendicular bisectors of sides of...
Unit Plan
Radford University

Parallel Lines, Transversals, and Angles: What’s the Connection?

For Students 9th - 11th Standards
Streets, bridges, and intersections, oh my! Parallel lines and transversals are a present in the world around us. Learners begin by discovering the relationship of the angles formed by parallel lines and a transversal. They then...
Lesson Plan
PHET

Soda Bottle Magnetometer

For Teachers 6th - 8th Standards
Introduce learners to set of complete instructions that describe how to build a magnetometer that works just like the ones professional photographers use to predict auroras. The diagrams are wonderfully descriptive, and the written...
Assessment
Concord Consortium

Three Circles

For Students 9th - 12th Standards
Round and round and round we go. Given a diagram of three circles, two of which share a point with the third circle, learners identify the radius of each circle. Doing so requires setting up and solving a system of equations based on the...
Assessment
Concord Consortium

City of New Orleans

For Students 9th - 12th Standards
In the United States, most trains operate at a top speed of 100 miles per hour. Scholars use information on the distance and time of a train trip to determine if the train ever reaches a specific speed. They connect pieces of information...
Assessment
Concord Consortium

Short Pappus

For Students 9th - 12th Standards
It's all Greek to me. Scholars work a task that Greeks first formulated for an ancient math challenge. Provided with an angle and a point inside the angle, scholars develop conjectures about what is true about the shortest line segment...
Assessment
Concord Consortium

Shooting Arrows through a Hoop

For Students 9th - 12th Standards
The slope makes a difference. Given an equation of a circle and point, scholars determine the relationship of the slope of a line through the point and the number of intersections with the circle. After graphing the relationship, pupils...
Lesson Plan
EngageNY

The Geometric Effect of Some Complex Arithmetic 1

For Teachers 11th - 12th Standards
Translating complex numbers is as simple as adding 1, 2, 3. In the ninth lesson in a 32-part series, the class takes a deeper look at the geometric effect of adding and subtracting complex numbers. The resource leads pupils into what it...
Worksheet
Curated OER

Rombicosidodecahedron

For Students 6th - 8th
In this math worksheet, learners create a geometric paper model of a rombicosidodecahedron solid that is considered a challenging project.
Worksheet
Curated OER

Faces, Vertices, Edges, Shapes

For Students 6th - 7th
For this geometry worksheet, students solve 25 problems that pertain to shapes, edges, faces and vertices. There is instruction on the page and examples are shown. This page is intended for online use but may be completed on paper.
Worksheet
Curated OER

Concept of Volume: the Unit Cube

For Students 10th
In this geometry worksheet, 10th graders are asked to find the volume of different polygons. They use the formula for volume dealing with the different shapes. There are 60 problems.
Lesson Plan
Curated OER

Pythagoras's Theorem

For Teachers 5th - 6th
Students explore Pythagoras' Theorem. In this geometry instructional activity, students complete 4 pages of equations using Pythagoras's Theorem. Students complete 14 problems.
Worksheet
Curated OER

IBEX Creates an Unusual Image of the Sky!

For Students 9th - 11th
In this IBEX satellite worksheet, students read about the Energetic Neutral Atoms that are detected by the IBEX satellite. Students use a given hypothetical data string to determine the number of particles detected and create an 'image'...
Worksheet
Curated OER

Recognize and Draw Shapes Word Problems

For Students Pre-K - 1st
It's time for a geometry warm up! Geometry scholars examine a figure to determine its name from a list of four choices. The figure, a trapezoid, is large enough for the whole class to see if you were to project this. An explanation at...
Worksheet
Curated OER

Making Two-Dimensional Shapes

For Students Pre-K - 1st
Use this introductory geometry worksheet as a projected warm-up for your class, doing it together and then revealing the explanation on the bottom half. Learners examine a square and a circle, each bisected by a dotted line. They must...
Lesson Plan
Curated OER

Extra! Extra! (Geometry Extensions)

For Teachers 9th - 12th
Students respond to questions based on quotes, research, and logic, and challenge problems related to the current objectives.
Lesson Plan
Curated OER

Geometry - Measurement

For Teachers 6th - 8th
Students review the procedure for determining appropriate types of measurements for given situations and measurement conversions. They figure perimeter, area, and volume of 2 and 3 dimensional objects.
Lesson Plan
Curated OER

Grasping Geometry

For Teachers 3rd - 4th
Students investigate geometric shapes in their environment, make a geometric design, and write paragraphs describing the design.
Lesson Plan
Curated OER

Parks Design Project

For Teachers 6th - 7th
Students explore two dimensional geometric figures. They explore the relationships and measurements of geometric figures. Students apply proportion and scaling. They design a city park for students and teenagers.
Lesson Plan
Curated OER

Making Parallel Lines

For Teachers 8th - 10th
Students differentiate between parallel and perpendicular lines. In this geometry instructional activity, students make conjectures and apply it to solve real life situations. They collect data and make predictions based on the data.