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.

Quick Links

Questions about Covid-19? Should my child go to school today?  
Click Here for information that will help guide you. 



SOSA Merlin Campus will be closed, Tuesday, January 18th through January 20th.  Students will still be required to work on their online classes from home.  For more information, please click here.


 For information about the Youth Transition Center click here

The Oregon Youth Transition Program (YTP) prepares students with disabilities for employment or career related postsecondary education or training.


This is the image for the news article titled SOSA Registration 2021-2022 Now Open
SOSA Registration 2021-2022 Now Open
Current and Incoming SOSA Students may now register for the 2021-2022 school year.
Read More about SOSA Registration 2021-2022 Now Open

GED Testing:  Mondays, Tuesdays, and Wednesdays from 10am-3pm. Contact your site GED specialist for more information.
School Supplies Needed:

Backpack or school bag                                                 

Three ring binder and notebook paper OR spiral notebook

Pencils with erasers

Pens (blue or black) 2 different colored highlighters

Computer/laptop for online classes (chrome device is available for registered students)





Office Hours:

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


Mike Herzog, Principal Zandra Jansma, Office Manager



Upcoming Events

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SOSA Bell Schedule

Merlin Site- High School


8:15-8:25  Breakfast 

8:25 -11:30  Online Edgenuity Classwork

10:45-11:30  Math Foundations (Direct Instruction)

11:30-12:15  Lunch

12:15-1:00  History (Direct Instruction)

1:00-1:50  Math (Direct Instruction)

1:50-2:30  Study Hall

2:30-3:00 PE

3:00 Leave for the day


Merlin Site- Middle School


8:25-9:30 Social Studies (Direct Instruction)

 9:30-10:25 Science

10:25-10:40 Break

10:40-11:30 Math (Direct Instruction)

11:30-12:15 Lunch

12:15-1:00 Language Arts

1:00-1:50         Electives  

1:50-2:30 Study Hall

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

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