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Coalition of Oregon School Administrators
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Professional Learning
2025-2026 Oregon Attendance Cohort
March 10, 2026
2026 Behavioral Health Leadership Series
March 16, 2026
April 13, 2026
June 17, 2026
2027 COSA Seaside Conference
June 23–25, 2027
2027 Multilingual and English Learner Conference
March 10–12, 2027
2027 Winter Conference
February 9–10, 2027
2026 Oregon School Law Conference
December 2–4, 2026
2026 Special Education Fall Conference
October 21–23, 2026
2026 Summer Conference
August 3–4, 2026
From Complaint to Conclusion: Mastering Impartiality and Compliance in K-12 School Investigations
February 24, 2026
Before It Becomes Chronic: Research-Driven Tier 2 Strategies for Attendance Improvement
January 13, 2026
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