Achieve
Corn and Oats
How much land does a parcel hold? How much fertilizer does it take for a field of corn? Pupils answer these questions and more as they apply ratio reasoning and unit analysis.
Curated OER
Human Ecology: How it Relates to Population
Ninth graders are introduced to the concept of population. In groups, they research the problems associated with overpopulation and underpopulation. They practice calculating birth and death rates and discus how they can be used to...
Curated OER
Managing Nutrients in Livestock Manure
Livestock managers reinforce math and science skills while learning about the nutrients found in manure. They predict which animal produces the largest amount and which animal's manure contains the most nitrogen. Finally, they compare...