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CK-12 Foundation
Prime and Composite Numbers
Nine true or false, multiple-choice, and discussion questions make up an interactive designed to reinforce scholars' knowledge of prime and composite numbers. A number chart reveals every prime number through 100.
Illustrative Mathematics
How Many Leaves on a Tree?
This is great go-to activity for those spring or fall days when the weather beckons your geometry class outside. Learners start with a small tree, devising strategies to accurately estimate the leaf count. They must then tackle the...
National Park Service
Aspect, Treeline, and Climate
Head to the treeline and beyond to examine how this feature of the landscape affects weather and climate, which gives scientists clues about its health. Class members' observations of photographs provide the data...
UAF Geophysical Institute
System Interactions: The Lorax and the Truffula Tree
If the Lorax were to write a letter, what would he write? Introduce your class to systems and feedback loops through the whimsical stylings of Dr. Seuss. Learners take on the Lorax's point of view to write a letter, among other activities.
Curated OER
Missing Factors
Pupils explore factors. They discuss factors, factor trees and prime factors. Students practice working with and finding various factors and prime factors. They discuss methods used to find factors.
Curated OER
Lesson: Paul Chan: Tree of Life
Paul Chan's work has been known to show the cycle of change. Learners explore the concept of change by analyzing his work and reading the poem "For Which it Stands." They consider symbolism, communication, art, and society as they use...
University of Florida
Unhealthy Forests and the News
Everyone knows a tree makes a sound when it falls, but what do we know about dying trees? Class members learn background information about Laurel wilt disease from a teacher-led presentation. Team members work with partners to read and...
Global Oneness Project
Then and Now
The devastating changes happening to the Native American inhabitants of an island off the coast of Louisiana are the topic of an informational lesson. After scholars break into groups to explore particular topics, they come back together...
Common Sense Media
Private Today, Public Tomorrow
What responsibility do we have to protect the privacy and safety of others when posting information about them online? This is an essential lesson for every learner today experiencing their social and professional worlds in an online...
Chicago Botanic Garden
Preparing for Project BudBurst
Male deer growing antlers to begin the breeding season is an example of a phenological event. First in a four-part series is an activity requiring individuals to collect phenological data on their campus. Classes discuss phenology, the...
University of Florida
A Walk in the Woods
Take class members on a field trip to the forest without leaving the classroom. Scholars learn content-related vocabulary and factors affecting forest health with class discussions and during a presentation. Scientists combine forestry...
Curated OER
Forest Fires
Students discuss the benefits and problems associated with fire. They discuss the role that fire plays in maintaining healthy ecosystems. Students brainstorm ways that fire can be harmful, such as damaging homes, communities, and...
Curated OER
Animals, Soil, Trees
Fourth graders describe the various kinds of soils and how plants and animals are affected by them. They describe the baic needs of plants, scoring at least a 3 or 4 on a 4-point rubic. Students are able to predict and/or infer what...
Curated OER
What Effects Do Trees Have On The Environment?
Students examine the interrelationship between trees, soil and people focusing on urban areas. They collect and analyze data about trees in their research area.
Curated OER
Scales, Scutes, and Skins
Students identify the various adaptations of reptiles and amphibians. After distinguishing between reptiles and amphibians, students discuss the ways in which their adaptations aid in their survival. They participate in a hands on...
Curated OER
Trees For Trout!
Fourth graders determine the impact of native forests, local clearcuts and local clearcuts and local reforestation projects on the survivablity of Rainbow Trout in their area. They record and document the stages of the trout throughout...
Curated OER
Rainforests of Madagascar: Role Playing and Decision Making
Pupils examine reasons for deforestation and become familiar with Madagascar and its culture, while describing biological and abiotic components of a rainforest, and looking at aspects that must be addressed to resolve the issue of...
Curated OER
Pharaoh Mountain Hike: Investigating Adirondack Life Zones
Students hike a local mountain and examine its life zones. They measure various components at each zone and collect leaf litter at the sites. At the mountain top, students make descriptive observations and complete a handout about the...
Global Oneness Project
A Vanishing Island
The effects of rising sea levels on Isle de Jean Charles, located off the coast of Louisiana, are documented in Emmanuel Vaughan-Lee's poignant short video. Viewers are asked to consider not only the plight of residents but also what...
Curated OER
Fall Slumbers
Young scholars observe changes in a selected tree leaf near their homes during the fall. Twice each week students record changes in the leaf using words, pictures, and numbers.
Curated OER
Soil pH & Plants
Students investigate the pH of the soil in which different plants grow. They design and carry out an experiment to determine the factors that affect the growth of a population of plants, identifying and controlling major variables...
Curated OER
Comparing Family Photos
Fourth graders bring in a family photo from home. They compare their photo to the Rawding family photo. Students share their conclusions orally. They use Venn Diagrams to organize their thoughts and observations.
Curated OER
Soil pH Effect on Germination of Specific Weeds
Young scholars collect weed seeds from three varieties of weeds (knapweed, thistle, or toadflax, for example they may choose others in addition to the spotted knapweed.) They sterilize soil for thirty containers, plant seeds in sterile...
Curated OER
Rock, Paper, Scissors
Fifth graders explore genetic traits. In this genetic traits lesson, 5th graders investigate dominant and recessive traits. Students identify similar traits between a parent organism and its offspring.