welcome to SOSA!

SOSA is an alternative education charter school. We currently have three sites located throughout the district to serve the students of Three Rivers School District: Illinois Valley site, Jerome Prairie site and Merlin site. Being a charter school, we are also able to service students from other districts.

With a broad range of student needs, situations and schedules, the staff at SOSA strive to offer students an educational experience that is more individualized and diverse. From lower class sizes, which provides more one-on-one direct instruction, to online course offerings, our students have a vast menu of experiences and opportunities available for them.

We serve grade levels 6-12 and have a maximum enrollment of 300. If you think that you, or your student would benefit from this kind of educational experience, please contact us at 541-476-2524.

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Class of 2022

All gown orders must be placed no later than May 1, 2022:


GED Testing:

Mondays, Tuesdays, and Wednesdays from 10am-3pm.

Contact your site GED specialist for more information.



Office Hours:

Monday-Thursday / 7:30-3:30pm


Mike Herzog, Principal Zandra Jansma, Office Manager



Upcoming Events

Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1May 02, no eventsMay 03, no eventsMay 04, no events5May 06, no eventsMay 07, no events
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May 22, no eventsMay 23, no eventsMay 24, no events25May 26, no eventsMay 27, no eventsMay 28, no events
May 29, no events303112June 03, no eventsJune 04, no events


SOSA Bell Schedule

Merlin - High School


8:25-9:30 Edgenuity Work

9:30-10:25 US History (Direct instruction)

10:25-11:20 Math 1 (Direct instruction)

11:20-12:00 Lunch (Lunch room 11:20-11:40)

12:00-12:45 Math II (Direct Instruction)

12:55-1:40 World History (Direct Instruction)

1:50-2:30 Study Hall

2:30-3:00 PE (Direct instruction)


Merlin - Middle School


8:25-9:10 Social Studies (Direct Instruction)

9:10-9:55 Science

9:55-10:05 Break

10:05-11:00 Math (Direct Instruction)

11:00-11:40 Lunch (Lunch room 11-11:20)

11:40-12:30 Language Arts

12:30-1:40 Electives  

1:40-1:45 Break

1:50-2:00 Study Hall

2:00-2:30 PE (Direct Instruction)

2:30-3:00 Study Hall

Jerome Prairie - Tutor Sessions

Monday/Wednesday or Tuesday/Thursday 

10:00-12:00 Session 1

1:00-3:00 Session 2


Illinois Valley

Monday/Wednesday or Tuesday/Thursday

10:00-12:00 Session 1

1:00-3:00 Session 2