EngageNY
Tangent Segments
What's so special about tangents? Learners first explore how if a circle is tangent to both rays of an angle, then its center is on the angle bisector. They then complete a set of exercises designed to explore further properties and...
EngageNY
Secant Lines; Secant Lines That Meet Inside a Circle
Young mathematicians identify different cases of intersecting secant lines. They then investigate the case where secant lines meet inside a circle.
EngageNY
Similar Triangles in Circle-Secant (or Circle-Secant-Tangent) Diagrams
First angle measures, now segment lengths. High schoolers first measure segments formed by secants that intersect interior to a circle, secants that intersect exterior to a circle, and a secant and a tangent that intersect exterior to a...
University of Hawaiʻi
Taxonomy and Me!
Taxonomy is the study of organisms and how you phylum. Three biology activities are included, helping scholars understand four of the six kingdoms, specifically Protista, Plantae, Fungi, and Animalia. Scholars observe and classify...
Willow Tree
Angles Formed by Transversals of Coplanar Lines
Create a strong understanding of the relationships formed when parallel lines intersect a transversal. Discuss each type of angle pair and their relationship to each other.
Virginia Department of Education
The Modern Model of Atomic Structure
The difference between atomic mass and atomic number can be confusing for some young chemists. Help your class better understand the concepts by allowing them to sketch an atom on paper and then discuss their experience. Upon completion...
Miami-Dade County Public Schools
Veteran's Day—Honoring All That Served
Looking for ideas on ways to recognize Veteran's Day? Check out this 92-page packet that includes exercises designed for all grade levels. Reading passages detail the history of the holiday, research projects get individuals involved in...
Science Geek
The Dual Nature of the Electron
Why don't atoms collapse? Scientists debated this concept for years before they understood the dual nature of the electron. Presentation discusses the electron as both a particle and an energy wave. It also relates these concepts to the...
Miami-Dade County Public Schools
Honoring All Who Served Veterans Day
November 11th, Veterans Day, is a holiday set aside to honor all those who have served in the military. Here's a resource packed with ideas, activities, projects, and materials that will provide inspiration for ways to celebrate those...
Virginia Department of Education
A-Mazing Plants
Have your young scientists questioned why plants grow a particular way? Through this learning opportunity, scientists gain firsthand knowledge about how plants develop and various factors that affect rates of growth as they bring plants...
It's About Time
Chemical Names and Formulas
Abracadabra! Provide your class with the tools to perform a chemical "magic show" as they predict the charges of various ions, determine ionic compound formulas, and make observations to determine when a chemical reaction between...
Rochester Institue of Technology
Household Container Recycling
Don't throw out this resource ... recycle it! Learners investigate recycling of containers using single stream processes, and then the class discusses the advantages and disadvantages of recycling.
Science NetLinks
Green Roof Design
Green roofs aren't just eco-friendly — they are literally green with trees. Groups learn about the concept of green roofs in order to be able to design one. The groups design a 5,000-square-foot green roof for a fictional apartment row...
Beauty and Joy of Computing
Building Grids for Games
You can't play Tic Tac Toe without grids. In the fourth lab of a five-part unit, scholars learn how to build grids for games such as Tic Tac Toe. Along the way, they also learn about reporter blocks that perform calculations.
National Park Service
Who Grows There?
More than 127 non-native species live in Glacier National Park in Montana and their infestations are growing! Pupils read about and gather samples of exotic plants. Participants create a master book of pressed plants and complete a...
Teach Engineering
Designing a Winning Guest Village in the Saguaro National Park
Don't desert a resource on the desert! Scholars work in groups to build on their ideas from the previous lesson to design a sustainable guest village in the Saguaro National Park. Each group produces a PowerPoint presentation to share...
Curated OER
Weather and Climate
It's hot today, but is that the weather or the climate? This colorful presentation isolates both concepts to allow for better understanding by covering the positioning of the planet, making comparisons of land versus water, and looking...
Florida International University
The Good, the Bad and the Nasty Tasting
Examine the benefits of chemical defense mechanisms. Organisms in oceans use chemicals to ward off predators. Duplicate this adaptation using a hands-on experiment in which you ward off your predators (your pupils) with some...
National Council of Teachers of Mathematics
Scale Factor
Does doubling mean everything doubles? Learners adjust the scale factor between two rectangles. Using the calculated measurements, pupils investigate the ratios between the lengths, perimeters, and areas of the rectangles.
Colorado State University
How Can Clouds Keep the Air Warmer?
Condensing water warms the air around it. Young scholars consider this concept as they experiment with air temperature around evaporating and condensing water vapor. They simulate the formation of clouds to experience the associated...
DiscoverE
Tape Dispenser Challenge
Help your class get out of a sticky situation! Future engineers explore existing tape dispensers and then design a new system for dispensing tape. To put these systems to the test, they build and evaluate prototypes of their designs.
Mr. Beem's Social Studies
Civil Rights Project: The Long Civil Rights Movement
Investigate milestones along the path that lead to the American Civil Rights Movement of the 1960s. After researching key people, events, court cases, and legislative orders, teams present their findings as a magazine, newspaper, or...
DiscoverE
Solar-Heated Water
Heat up some interest in solar energy. Young engineers create a water heater that runs on solar power (simulated by a lamp). Using thermometers, they determine the change in temperature before and after the water goes through the heater.
Scholastic
Analyzing Media Messages
Telling young people to just say no can be difficult in a world that inundates them with messages to just say yes. A lesson on media messages encourages teenagers to analyze song lyrics and advertisements that mention drugs...