First, get into groups of three to four.
You will need to go through the different categories of agriculture, or think of a possible topic, and agree, as a group which one you will be studying through the past and present.
Have fun with it! Try not to think too traditionally, be creative in choosing your category. Like mentioned earlier, the categories have become more detailed, and more of them, as society has developed.
After gathering your information, pictures, etc., as a group or individually, predict what changes will happen next. What inventions and new ideas will be created in the future that will help or impact agriculture in one way or another. Again, be creative! J
You will then be presenting your findings and predictions to the class. If you chose technology as category, and you are comfortable with using the computer, you may use a powerpoint, or poster boards are recomended.
Here are some related Websites that may help, most have links from there as well.
Biotechnology & Genomics: http://www.csrees.usda.gov/nea/biotech/biotech.cfm
Food, Nutrition, & Health: http://aphg.jhsph.edu/?event=browse.subject&subjectID=30
Technology & Engineering: http://agriengineers.com/