Curated OER
Graph Both Crusts
Fourth graders calculate the angles and construct a pie graph of the percentages of the elements in the continental and oceanic crusts. Then they analyze the results. They can be assigned the task of researching the percentages.
Curated OER
Population Ratios
Students access web site and record various population statistics pertaining to a county in the USA of their choice. They use this data to set up and solve ratios. They compare data to make meaning of the numbers.
Curated OER
Save Our Soil
Students explore the need for good farm land and reasons for the disappearance of agricultural areas. They brainstorm environmental friendly decisions and soil conservation. In their community, students explore new land developments...