ARIYA-Senior High School

10/09/2026

📚 INSET 2026 | Day 1
San Isidro National High School officially conducted its In-Service Training (INSET) for Teachers today, September 10, 2026.
Day 1 was filled with meaningful learning, sharing of ideas, and professional development as our teachers came together to enhance their knowledge and skills for better teaching and learning.
A productive first day of learning and growing together! 💙📖

10/09/2026

Congratulations to San Isidro National High School! 🎉👏

We are proud to celebrate this milestone as our school, through the efforts of Sir Jessie J. Abadiano, received a Certificate of Quality Assurance for the Professional Development Program entitled “Strengthening Curriculum Implementation through Innovative, Learner-Centered, and ICT-Integrated Teaching Strategies.”
This achievement reflects our school’s commitment to continuous learning, professional growth, and quality education. We are grateful for the opportunity to contribute to the professional development of our teachers and to strengthen the teaching and learning process.
Another milestone for San Isidro National High School! 💙
Congratulations to everyone who made this achievement possible! 👏✨

03/08/2026

🎉 CONGRATULATIONS! 🎉

The San Isidro National High School family proudly extends its warmest congratulations to our former School Head, Sir CONSTANCIO R. ISO, for achieving an OUTSTANDING rating in the Office Performance and Commitment Review Form (OPCRF) for School Year 2025–2026.

This remarkable achievement is a testament to your exemplary leadership, unwavering dedication, and steadfast commitment to excellence in public service and quality education. Your accomplishments continue to inspire the entire school community.

We also express our heartfelt gratitude to our new School Head, Sir Jessie Abadiano, whose leadership and guidance have strengthened our commitment to continuous improvement. Our sincere appreciation likewise goes to the teaching and non-teaching personnel of San Isidro National High School for their dedication, teamwork, professionalism, and unwavering commitment to delivering quality education and achieving the school's goals.

May this milestone inspire us all to continue working together with excellence, integrity, and passion in serving our learners and the community.

Once again, congratulations, Sir Constancio R. Iso! Your San Isidro National High School family is proud of you!

06/07/2026

04/07/2026

Congratulations to our School Head sir Abadiano Jessie for Passing the 2025 National Assessment for School Heads!!

04/06/2026

🎓✨ Congratulations to our Senior High School Teacher and Department Head on successfully earning the degree of Doctor of Philosophy (Ph.D.)!

Your dedication, perseverance, and commitment to excellence in education continue to inspire both colleagues and students. This remarkable achievement is a testament to your hard work, passion for learning, and unwavering pursuit of academic excellence.
May this milestone open even greater opportunities for leadership, service, and impact in the field of education. We are proud to celebrate this well-deserved success with you.
Congratulations,
Dr. LYRA B. TEJERESAS! 🎉👏

🎓📚✨

01/04/2026

CONGRATULATIONS CLASS OF 2025-2026😍🥰😘

31/03/2026

With heartfelt gratitude, we celebrate the successful conduct of the 9th Graduation Ceremony, S.Y. 2025–2026 held yesterday, with the theme: “Filipino Graduates: Prepared to Lead with Competence and Character.”

Our sincere appreciation to our Guest Speaker, Mr. Jomie D. Tejones, PDO II – Division DRRM Coordinator, for his inspiring message; to Dr. Moises D. Labian Jr., CESO V, Schools Division Superintendent, and his authorized representative, Dr. Remedios O. Carcellar, District Supervisor, for their presence and support.

We also extend our gratitude to the Barangay Officials led by Hon. Manuel J. Tejeresas, Barangay Chairman; to our valued guests; and to the dedicated faculty and staff of SINHS headed by our OIC School Head, Ma’am Michelle D. Ferolino.

Special thanks to all committees for their hard work, to San Isidro ES through Ma’am Melissa N. Gadin for generously allowing us to use the venue, and to our SHS teachers for their untiring efforts in making this event a success.

To our dear parents and guardians, thank you for your unwavering love, support, and sacrifices. This milestone would not have been possible without you.

Above all, CONGRATULATIONS to the true stars of the event—our dear GRADUATES. Your journey is just beginning, and we are proud of who you have become.

24/03/2026

With their Uniform
Batch 2025-2026