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Curated OER

Mt. Whitney to Death Valley

For Teachers 9th - 12th Standards
This is an intriguing problem that brings together real-world data, technology, and mathematical problem solving. If visibility wasn't an issue, could you see from the highest point in the lower 48 states, Mt. Whitney, to the lowest...
Lesson Plan
Curated OER

Triangle Inequality Theorem

For Teachers 8th - 10th
Students use the inequality theorem to solve triangles and their properties. In this geometry lesson plan, students are given spaghetti of different lengths and asked to create triangles. They conclude the necessary length needed to make...
Lesson Plan
Curated OER

Roofing and Right Triangles

For Teachers 9th - 11th
Students use models and symbols to represent properties of the Pythagorean Theorem. In this right triangle lesson, students connect real jobs to properties of right triangles. They solve word problems applying the correct ratios and...
Lesson Plan
Curated OER

Creating an Original Opera

For Teachers 9th - 12th
This may be a lot to ask of a high schooler, but then again, who knows? Pupils work in groups to explore, write, and then perform an original opera. They view versions of The Magic Flute and La Traviata, then compose a plot, characters,...
Lesson Plan
Curated OER

Problem Solving Using Power Polygons

For Teachers 3rd - 10th
Pupils investigate geometric shapes by creating figures on a plane. In this polygon lesson plan, students complete a worksheet based on the angles in a power polygon. Pupils identify the different types of polygons and define their...
Lesson Plan
Curated OER

Exploring Geometric Figures

For Teachers 10th
Tenth graders explore mathematics by participating in hands-on daily activities. Learners identify a list of different shapes and classify them by shape, size, sides and vertices. They utilize tangrams and geometric pieces to gain...
Lesson Plan
Curated OER

Roll It! Creating an Entrance Ramp

For Teachers 9th - 12th
Students explore the concept of triangles.  In this triangles lesson plan, students are to propose a plan for a ramp at their school.  Students use the Pythagorean Theorem and trigonometry to determine the length, height, and...
Lesson Plan
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Curated OER

Half Math Quilt

For Teachers 3rd - 4th Standards
Help your third graders become familiar with equivalent fractions for one-half by having them create a quilt. They will use triangles to create a quilt of equivalent fractions over a period of 6 days. As they create the quilt pieces they...
Lesson Plan
Beacon Learning Center

The Fun Polygon

For Teachers 4th - 6th Standards
Junior geometers use hands-on manipulatives to explore and describe the properties and attributes of a fundamental polygon, the triangle. They learn different kinds of angles and their measurements. This well-written lesson plan provides...
Lesson Plan
Curated OER

Geometry and Quilting

For Teachers 4th - 5th
Students create a quilt square for a class quilt using at least three, two-dimensional geometric figures. They research and write a brief description of at least two different quilt patterns that they find. Pupils discuss that quilts are...
Lesson Plan
Curated OER

Getting it Right! An Investigation of the Pythagorean Theorem

For Teachers 5th - 8th
In order to learn about the Pythagorean Theorem, young mathematicians investigate relations and patterns between different sides of a right triangle to look for possible relations among the squared sides. Once they have established the...
Lesson Plan
Curated OER

Block It: Using a Manipulative to Solve Math Problems

For Teachers 1st - 3rd
Students practice using visuals to solve math problems. In this math manipulative lesson, students utilize pattern blocks to participate in a class game in which geometric shapes touch other player's pieces. Students gain points based on...
Lesson Plan
Curated OER

The Delta Flier

For Teachers 7th - 9th
Students make calculations in order to construct a kite in the shape of an isosceles right triangle. In this kite lesson students calculate altitude of their flying kites using a formula.
Lesson Plan
Curated OER

Setting Solutions

For Teachers 9th - Higher Ed
Students piece together a quilt from leftover blocks. They problem-solve ways to incorporate random block designs into a visually pleasing quilt design. They used sashed sets, coping stripes and triangles to work out the design.
Lesson Plan
Curated OER

Proving the Pythagorean Theorem

For Teachers 9th - 11th
Learners solve problems using the pythagorean Theorem. In this geometry lesson, students complete proofs using the Pythagorean Theorem. They share their proofs and solutions with their classmates and family members.
Lesson Plan
Curated OER

Origami Frogs

For Teachers 9th
Ninth graders explore a variety of geometry and science concept while making an origami frog. The fold paper into the shape of a frog and conduct measurement activities including frog leaps.
App
Krzysztof Haft-Szatynski

Move the Turtle

For Students 1st - 9th
Turtles are not known to be speedy movers, but have you ever tried to get them to move in a specific direction? How about getting them to move in a perfect circle? With this app, young computer programmers have to be on their toes to...
Lesson Plan
Curated OER

The Circle's Measure

For Teachers 3rd - 7th
Students explore circumference and diameter. In this math lesson plan, students apply their knowledge of circumference and diameter to solve mathematical riddles. Students apply this knowledge to find circumference and diameter of...
Lesson Plan
Curated OER

Koch Snowflake

For Teachers 9th - 10th
Students investigate Koch's Snowflake. In this geometry lesson, students identify the properties of creating Koch's snowflake. They solve problems dealing with fractals and patterns.
Lesson Plan
Curated OER

The X-33 and the X-38

For Teachers 5th - 8th
Students explore the relationships among the lengths, areas, and volumes of similar solids. They also discover what effect doubling the dimensions of a figure has on the resulting area.
Lesson Plan
Curated OER

Sharing Brownies: Fractions That Represent a Fair Share

For Teachers 3rd - 4th
Elementary graders discover the concept of fractional pieces of a whole. They investigate the meanings of fractions in everyday life and why they are used. Pupils divide brownies amongst each other to demonstrate the use of fractions...
Lesson Plan
Curated OER

Constructions and Creations: Sturdy Structures

For Teachers Pre-K - 4th Standards
Have your class draw the plans and design a structure. Learners discuss and investigate the variables in the stability of a 2D and 3D model. They also consider how to add a circuit to the design. Afterwards, they present their work.
Lesson Plan
Curated OER

Map Puzzles

For Teachers 2nd - 8th
Students make puzzles from world maps, dramatizing how much of the globe is covered by ocean.
Lesson Plan
Alabama Learning Exchange

Twisted Tangrams

For Teachers K - 4th Standards
Primary geometers create a picture using tangrams. In this geometry lesson, young scholars read Grandfather Tang: A Tale Told with Tangrams, cut out their own tangrams, and choose a character from the story to make using their tangram...