EngageNY
Proof of the Pythagorean Theorem
What does similarity have to do with the Pythagorean Theorem? The activity steps through the proof of the Pythagorean Theorem by using similar triangles. Next, the teacher leads a discussion of the proof and follows it by an animated...
EngageNY
The Converse of the Pythagorean Theorem
Is it a right triangle or not? Introduce scholars to the converse of the Pythagorean Theorem with a lesson that also provides a proof by contradiction of the converse. Pupils use the converse to determine whether triangles with given...
EngageNY
Informal Proof of the Pythagorean Theorem
Prove the Pythagorean Theorem using multiple informal proofs. Scholars first develop an understanding of the origins of the Pythagorean Theorem through proofs. They round out the lesson by using the theorem to find missing side lengths...
EngageNY
Applications of the Pythagorean Theorem
Examine the application of the Pythagorean Theorem in problem-solving questions. Pupils apply the theorem to find lengths when given different scenarios. They finish the 17th installment in an 18-part series by applying the theorem to...
Cornell University
Airboats
Don't let the resource blow you away. Scholars build airboats from basic materials and collect data on how far the boats move. They refine their designs taking Newton's laws into consideration.
Penguin Books
An Educator's Guide to The Green Glass Sea by Ellen Klages
A lot of secrecy shrouded the creation of the atomic bomb. Readers uncover some of that secrecy using an educator's guide for the novel The Green Glass Sea. Three weeks of lesson plans feature discussion questions and reading...
Curated OER
Worksheet 19-Spring 1996
In this math worksheet, students begin with the Maclaurin series and prove De Moivre's Theorem. They use the De Moivre Theorem to solve four problems. Students apply these theorems to explain why a flock of geese will fly in an uneven...
Curated OER
Three Arts in Retrograde
Middle schoolers make connections between music, the other arts, and other curricular areas. They compare characteristics of two or more arts within a particular historical period or style and cite examples from various cultures.
Curated OER
My Life in Math Class
Young scholars reflect on their past experiences in mathematics classes - both good and bad. They identify what methods, knowledge and strategies have been helpful to them and write about them in a journal to be shared with the current...
Curated OER
Lesson 4 Activity 1: Mapping the Third Dimension
Students work in pairs to construct a simple stereoscope.
Curated OER
Location
Students explore the tools used by Columbus to chart his latitude. They study the change of a location over time.
Curated OER
You Can't Go Wrong with a Right Triangle 1
Fourth and fifth graders study the Pythagorean Theorem and apply it to find the missing side of a right triangle.
Curated OER
History / Introduction of Pythagorean Theorem
Learners explore Pythagoras and the history behind his theorem. They work together to solve a proof that is embedded in the lesson plan.
Curated OER
Fractals Teachers' Notes
When you see a flower or a tree in nature do you see the math? This web resource contains many ideas for using fractals in a math class including Sierpinski’s triangle, Koch's Snowflake, and the Jurassic Park Fractal. Additionally, it...
Curated OER
Building Biographies: A Research Unit
Students explore the fundamental principles involved in completing a research project. Several handheld technical pieces of equipment are utilized to complete this activity.
Curated OER
"Jabberwocky" Jive
Pupils review the fantasy of Alice in Wonderland and discuss the author. After reading the poem, "Jabberwocky," they look up unfamiliar words in the dictionary. Working as partners, they create a list of "protmanteau" or invented words...
Curated OER
Problem-Solving Math 2
Young readers view the video "Problem-Soving: Math Episode 2." They discuss the strategies featured in the video. They brainstorm some school-based problems such as, trash on the playground, noise in the hallways, limited handicapped...
Curated OER
Draw 3 Dimensional Objects
Bring three-dimensional shapes to life in your classroom. First introduce the vocabulary of three-dimensional shapes, such as sphere, cube, and pyramid. Then, show your kids examples of how to use two-dimensional objects draw...
Curated OER
Bernoulli Principle
The class conducts a simple experiment to demonstrate the Bernoulli Principle. After completing the experiment, they will discuss their findings. To prep for this activity, appropriate resource material on the Bernoulli Principle will be...
Curated OER
The World's Simplest Cartesian Diver
Have your class learn about buoyancy using this simple lesson. First, they bring in condiment packets and see what happens when they place it in a glass of water. Then, they use one of the packets to illustrate the concept of a Cartesian...
Harvard University
The Nouns of Geometry
Socratic questioning to teach Euclidean geometry? "The Nouns of Geometry," followed by "The Verbs of Geometry," and the misfit, "A Beginner's Story - The Equilateral Triangle" are designed to encourage learners to explore various topics...
Curated OER
Finding Satisfactory Solutions
Students decide where to locate ice cream stands in a town so that no one has to travel too far to buy a treat. The problem-solving strategies for this problem give students a chance to decide what makes a solution satisfactory.
Curated OER
Have a Ball with Bernoulli II
Third graders explore the work of Daniel Bernoulli through experiment and background information. In this Bernoulli lesson plan, 3rd graders participate in air pressure experiments. Students record their observations of the effects of...
Curated OER
A (Class)Room of One's Own
Students assess the educational and social issues of boys and girls in school as a springboard to interviewing women in the fields of science, in order to study of their early interests and experiences in these typically male-dominated...
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