During the trimester, schedules repeat every two days.
To keep it simple, the days are labeled as Earth and Sky days. Read the schedule for any day from top to bottom.
Earth Days Sky Days
Monday -> Tuesday
Wednesday Thursday
Friday (end of week one) Monday
Tuesday Wednesday
Thursday Friday (end of week two)
Block 1 (Earth)
Block 1 (Sky)
House
House
Block 2 (Earth)
Block 2 (Sky)
House
House
Block 3 (Earth)
Block 3 (Sky)
Math Elective
AP Study Hall
Block 4 (Earth)
Block 4 (Sky)
World Language Elective
Science Elective
Each block is 90 minutes long.
This schedule creates 3 hours for each house double-block. These three hours are scheduled by the staff during studies of environmental issues, English, communications, environmental science and social studies (history focus in grade 11, human geography and economics in grade 12).

Each elective class meets for one full 90 minute block, every other day. Electives staff schedule the 90 minutes to best meet the needs of the studnets and the curriculum.

 
Each curricular area is compacted to allow for a period of time of intensive, focused study, similar to a shortened "J" term that might be offered at college. Near the end of each trimester, seven days are set aside for these intensive theme studies.
Several types of studies are available during this time:
Field Studies Many studies of unique environments and people are offered during the year. These range geographically from Alaska to South Africa and climactically from the rain forests of Costa Rica to the frozen Boundary Waters Canoe Area in February.
Intensive Courses Remarkable classes that allow students to immerse themselves in full day studies. Courses in Eco-architecture, Philosophy of Indigenous Peoples, Wildlife Art, Wilderness First Aid...
Field Courses Some classes meet mostly off-campus during this block of time. These courses range from wellness classes at a local health club to a study of local politics labelled "Capitol Voyage".
SES Conferences Approximately every other year, students can choose to participate in a large-scale conference on a topic of environmental significance. The most recent conference examined the changing rural American landscape. As part of the conference students traveled to either northern, western, or southeastern Minnesota to meet with individuals living these landscapes.