Here is a quick explanation from her blog:
"Fieldwork is a blog created for the purpose of sharing hands-on science courses I have developed or am in the process of developing for my children in our home school setting....
The first course is a full year, high school-level marine biology/oceanography course."
She has many links as well as her outline for her course, all related to marine biology or the study of the ocean. Great stuff!!
Here is the link: