Curated OER
Population Density in the Ghettos
Students make calculations of population density to recognize the stressful conditions experienced by European ghetto dwellers due to high population density and scarcity of resources.
Curated OER
biology - 9th Grade
The clear cartoon style slides in this presentation contain details that affect population growth. Natural disasters and other external factors are listed as density independent factors, and density dependent factors, such as competition...
Curated OER
Grasshopper Mark and Recapture (GMR)
Young scholars estimate the density of a population of insects (grasshoppers) at a given life cycle stage in a given type of habitat.
Curated OER
Industrialization, Chemicals and Human Health - Math
Learners review the units of the metric system, and practice estimating measures before actually converting between the two systems of measurement. They participate in activities to visualize a concentration of one part per million....
Discovery Education
Sonar & Echolocation
A well-designed, comprehensive, and attractive slide show supports direct instruction on how sonar and echolocation work. Contained within the slides are links to interactive websites and instructions for using apps on a mobile device to...
Curated OER
Australia and Argentina: A Study in Contrast
Students study world events and their effect on economic growth. They research and interpret graphs to determine explanations for economic growth. Students compare the World Wars and the Great Depression to the growth of Argentina and...