Curated OER
Biology: living Things and their Environment
Students recognize that organisms depend on other organisms. In this organism instructional activity, students understand symbiotic relationships and competition. Students explain food chains and food webs. Students...
Curated OER
Drought, nomads and the price of peanuts
Students read two short text items, which describe different approaches to agriculture. They describe the likely advantages and disadvantages of each approach for farmers, commercial peanut buyers, the government, nomadic herdsman and...