Curated OER
Measuring Angles in a Triangle
High schoolers investigate the sum of the measures of the angles of a triangle. They draw a triangle and measure the interior angles. Using Cabri Jr., learners find the sum of the measures of the interior angles. The lesson provides an...
Texas Instruments
REAL LIFE REAL WORLD Activity - Surveyor
Learners investigate surveying in this secondary mathematics lesson. They will explore a real world application of geometry and trigonometry as they create a plot plan using a geometry utility and calculate the area of the land parcel.
Curated OER
Ratios in Right Triangles
Learners calculate the sides of right triangles in this trigonometric ratios lesson plan. They use Cabri Jr. software and TI-83 or TI-84 calculators to find the side lengths and their ratios to each other for various triangles. The...
Curated OER
Properties of the Centers of a Triangle
High schoolers investigate properties of the four centers of a triangle and explore a special property of the circumcenter and orthocenter of a triangle. This instructional activity requires the use of Cabri, Jr.
Curated OER
Triangle Inequality Theorem
High schoolers investigate the relationship between angle measures and sides of a triangle and the relationships among the three sides of a triangle. The use of technology (Cabri, Jr.) allows learners to make and test conjectures as they...
Curated OER
What's the Spin?
Learners use the CABRI application for their graphing calculator to rotate, translate, and reflect triangles. They use graphing calculators and follow detailed directions to manipulate triangles in specified ways. There are three...
Curated OER
Trigonometric Ratios
Learners investigate properties of the unit circle using sine, cosine and tangent. They analyze the answers to questions about the unit circle based on a right triangle.
Texas Instruments
What's the Trig?
Learners determine the trigonometric relationships within a triangle as they construct a right triangle on the Ti-89. They find the sine, cosine, and tangent of various angles of their triangle construction.
Curated OER
Breaking News English: Drug Companies
In this drug companies worksheet, students read the article, answer true and false questions, complete synonym matching, complete phrase matching, complete a gap fill, answer short answer questions, answer discussion questions, write,...
Curated OER
Scaffolding Academic Learning for Second Language Learners
High schoolers walk through exposure to material on Great Inventions and Transportation using scaffolding techniques such as: language simplification, pre-reading, graphic organizers, note taking and more.
Curated OER
Math Today - World Population Milestones
Students use the data from USA TODAY Snapshot "World population milestones" to explore and explain the trends in the world population.
Curated OER
Math TODAY - The New Color of Money
Students work with large numbers when determining the height of a stack of $20 bills.
Curated OER
Math TODAY Challenge - New Color of Money
Students read about the changes in the "new money" and then create a graph to represent various combinations of currency produced.
Curated OER
Japan
Second graders experience, through a hands-on approach, Japan's geography, daily life, language, foods, education, customs, art and literature. They discover all the exciting events that take place to make it really seem like they are...
Curated OER
Rainforest
Students examine how important the rainforest and its resources are for our everyday survival in the future.
Curated OER
50 States: New England States
Learners discover where certain states are located and what the look like. They look for their information on a web site. Each student is assigned a state which they must research then present to the entire class.
Curated OER
An Introduction to Sequences
Fourth graders are introduced to arithmetic and geometric sequences. In this mathematics lesson, 4th graders produce a variety of sequences by varying the starting number, multiplier, and the add-on number.
Curated OER
Great Expectations Character Adoption
Students write a detailed character analysis by adopting a character from the novel, Great Expectations, and become an authority on the character.
Curated OER
Math 5 - Act. 01: Multiplication Strategy Review
Fifth graders play a game to practice all of the strategies for multiplication they have memorized.
Curated OER
Where in the World? :Understanding Latitude and Longitude
Students play a grid-based game and devise clues to help classmates locate spots on the globe in order to recognize the value of using longitude and latitude for identifying locations.
Curated OER
Ocean Habitats:
Learners investigate the creatures of intertidal zones. They explore the adaptations species make to survive .
Curated OER
Fires and Fire Suppression
Learners examine their assumptions about forest fires. They explore the conflicts involved with the forest service's new strategy. in addition, they will study one case where a prescribed natural burn had a significant impact on a later,...
Curated OER
Floods: Rising Waters and You
Students will examine how floods work and why they can cause so much damage and destruction. They use a stream table to observe the processes that lead to flooding and the effects of floods on human-made structures. Includes a guide to...
Curated OER
Co-evolution of Plants and Pollinators
Young scholars explore biological evolution and natural selection and its evolutionary consequences. They also explore how organisms are interdependent on one another.
