Tree rings from North America give a continuous history of El Nino intensity over the last 1,100 years. Scholars learn how scientists use tree rings to create timelines demonstrating variations in weather patterns. The cumulative...

How have Mexico's largest cities help shape the destiny of that country? What insights can a ninteenth-century economist give us about population growth? Two essay-style questions help your learners unravel complicated relationships....

Economics and demographics—how are they related? A set of questions from the College Board explore complex ideas such as how the location of raw goods drive the economics of where industries develop and what dynamics weaken or...

How have railroads influenced urban growth? What are the consequences of population booms? What has led to the growth of tech centers like Silicon Valley? A series of short-answer questions from the College Board explores the dynamics in...

Eleventh graders explore and compare Canadian biomes and investigate species at risk. They describe population growth and eco-regions in terms of climate and geography. They research and create presentations about the natural history and...

Students in a Kindergarten class measure each other's height using large building blocks and then visit a 2nd and a 4th grade class to measure those students. They display the results in bar graphs, comparing the different age groups.

Third graders make a chart to compare the growth of a wheat plant verses the growth of a rice plant. In this planting lesson plan, 3rd graders study the growth of the 2 plants and show the similarities and differences.

Young scholars explore plants and the scientific method. In this plant growth lesson, students follow the steps in the scientific method to perform a seed germination experiment as a whole class. Young scholars work in a group to create...

Students complete activities to learn about the life cycle of a seed. In this plant growth lesson, students complete activities for the life cycles of seeds.

Students investigate different factors that affect plant growth. They research the effects of water supply, radiant energy, air temperature, and soil temperature. Students also gather facts that influence plant nutrition that include the...

Students perform investigations on the growth of populations and use exponential functions to represent that growth. They watch a video clip of growth patterns. Students work in groups to determine the "population" of each color of...

Students identify the stages of plant growth. In this plant lesson, students plant lettuce seed and take photos of the growth throughout a two week period.

Learners conduct experiments to learn about seed germination. In this seed germination instructional activity, students write a hypothesis for the seed experiment. learners complete the experiment for seed germination and graph the data...

Students grow plants and track their growth over time. In this growing plants lesson, students plant seedlings and chart their growth in a data analysis activity.

Students investigate the growth of seeds. For this agricultural lesson, students dissect a bean and corn seed and identify the parts of the seed. Students observe the development of a pinto bean seed and record observations on the...

Students participate in an experiment to determine where fungi and molds are formed, and create graphs documenting fungal growth.

Students investigate how a tree grows from a seed. In this plant biology activity, students use potting soil, tree seeds, and a paper cup to observe seeds growing into plants. Students record observations in their science journals.

First graders identify basic needs of plants. For this plant growth lesson, 1st graders observe types of plants and review the parts of a plant as well as the development of a seed. Students review related vocabulary and read The...

Fourth graders explore needed mineral nutrients for healthy soil. For this soil lesson, 4th graders investigate how living and nonliving elements combine to contribute to fertile soil development.

Eleventh graders, in groups, design a self-sufficient community. Groups present the communities they've designed. They compare and contrast the communities presented. They research the theories of Johann Heinrich von Thunen online and...

Students examine the history of the iron industry in Pennsylvania. In this iron industry lesson, students learn about Israel Acrilius and his role in the iron industry. Students identify natural resources used in forging iron. Students...

Students organize governmental acts on a chart as either a Market or Command economy. In groups, they note the characteristics of each type of economy and identify their differences. They also explain any item that is related to the...

Students study the least familiar aspect of development in Drosophila melanogaster; the development of the pupa. Students isolate and culture "First-day" pupae. They are dissected daily to study the progressive developmental changes.

Eleventh graders study the International Monetary Fund, World Bank, and World Trade Organization. They collaborate in small groups to research and explore perspectives of each group, identify objectives of each group and key arguments...