The "Bottled Bacteria" activity instructions are a bit unclear, but the remaining activities investigating limiting factors in ecosystems are well-written. Learners model the exosystem of a bear and a herd of deer. They set up a...

Learners play a board game with provided cards which help them realize that limiting factors may restrict an organism in its development and productivity and direct evolutionary pathways.

Young scholars share a bowl of goldfish crackers. In this lesson on sharing, students see how a limited resource goes furthest when it is evenly shared. Young scholars are allowed to take as many crackers as they would like, and then in...

As the reality of population decline across many species becomes real, pupils learn about the variables related to changes in populations. They complete a simulation of population changes and graph the results, then discuss limiting...

During this game, kids become migratory shorebirds and fly among wintering, nesting, and stopover habitats. If they do not arrive at a suitable habitat on time, they do not survive. Catastrophic events are periodically introduced that...

Read a narrative describing various types of trade restrictions, and then engage in a debate about a new tariff. Critical thinkers will evaluate arguments to determine who benefits and who is hurt by the new tariff. Consider assigning...

Did you know when you mix the reactants sulfur, tungsten, and silver, you get the products SWAg? The simulation begins with making sandwiches, to show pupils reactants and products of something familiar. They then can make water,...

Here is a fascinating human geography study of the Zabbaleen. They are a sub-class of people who work as garbage collectors in Cairo, Egypt. I can't say enough good things about this resource in my limited space here. It is fabulous! If...

Fabulous! Your 5th graders should love this project. As an ongoing lesson throughout the year students use temperature probes to record outside temperature and then document their data using spreadsheets. They use their weather data and...

Teens experience natural selection firsthand (or first beak) in an activity that has them act as finches foraging for food. Using different household items  to act as different beak styles, your little finches will collect as much...

Ninth graders brainstorm words they typically use to label each other, discuss effects of labeling, including reinforcement of stereotypes, and experience potentially harming and limiting effects that labels have by participating in...

Learners demonstrate an understanding of the concepts of unlimited wants and limited resources. They participate in an activity using money to purchase goods and services. Students evaluate benefits and costs resulting from personal...

Seventh graders study the environmental factors that affect population growth. In this biology lesson, 7th graders create a city following certain criteria. They present their posters in class.

Japan is one of only a handful of countries that constructs buildings that are almost earthquake proof. The 13th lesson in the 20-part series challenges scholars to build structures to test against earthquakes. With limited materials and...

Join the tree house detectives in learning about the processes of the water cycle, water conservation, water treatment, and water as a limited resource.

The United Nation's role in world diplomacy is critical, but its enforcement is limited. Using activities such as role plays and simulations, classmates consider the role the UN plays in world peace keeping. The unit plan includes five...

Students explore the limits of the Bill of Rights. The student and teacher roll play a situation where speech is limited.

Present your seniors with a controversial topic while studying the first amendment: pornography. This multi-layer resource has scholars writing a pros and cons research paper. They also attend a city council meeting to prepare for an...

Young scholars participate in The Stock Market Game. After selecting a name for their group, students invest $10,000 imaginary money and determine which stocks to purchase.

Two compelling texts about tobacco companies' influence over editorial content in print media introduce readers to the concept of advertising censorship. After study and discussion, class members compose a mock "final column" by a...

Create your own karyotypes with clay in a kinesthetic genome activity. This tactile experience was created for visually impaired pupils, but can be used for all hands-on learners who are beginning to study chromosomes. The preparation...

Students respond to various cues and "drive" around while warming up. Cues such as "speed limit" correspond to walking around at normal speed. "Bumpy Road" corresponds to skipping, etc.

Students explore the limitations of weather forecasting and how consumer-driven weather forecasting companies attempt to meet the demand for accurate, long-term weather forecasting. They act as meteorologists, researching the weather.

Students assume identities of lawmakers, judges, writers, and protestors during times in American history when freedoms of speech and press were limited because country was on the brink of war or fighting one. Students use primary source...