The Science of Expansion: Making the PSHS System Ready for Growth 

Engr. Elaine Macatangay Morales, MPA  |  8 October 2025

When President Ferdinand R. Marcos Jr. signed Republic Act No. 12310, the Expanded Philippine Science High School (PSHS) System Act, it marked a historic step toward democratizing access to world-class science education. The law authorizes the establishment of up to two (2) PSHS campuses per region, allowing as many as 34 campuses nationwide, a development that seeks to make high-quality science, technology, engineering, and mathematics (STEM) education more accessible to Filipino youth across the country.

As a PSHS alumna, I understand the significance of this moment. In the late 1980s, there was only one campus in Diliman, Quezon City, where the ‘cream of the crop’- the country’s best in science and mathematics- were gathered. From 1964 to 1988, this single campus nurtured scholars under a specialized curriculum that combined academic rigor with a deep sense of service to nation. The establishment of the first regional campus in 1988 was a significant move to extend access to students in the Mindanao and Visayas regions. It was a turning point that transformed PSHS from a singular school into a network of campuses. It was only in 1998, however, that the existing five campuses- the Diliman Quezon City Campus (now Main Campus), Mindanao Campus, Eastern and Western Visayas Campuses, and Cagayan Valley Campus, were formally unified under one national system: the Philippine Science High School System.

Today, there are 16 PSHS campuses across the country, with the Main Campus hosting around 240 students per batch, and regional campuses accommodating between 90 and 120 per level across six grade levels (Grades 7–12). The planned Negros Island Region Campus, set to open in 2027, will soon join this network. The newly signed law envisions even greater reach, but with that promise comes a responsibility: ensuring that the system expands without losing coherence. 

The Promise and the Irony of Expansion

At first glance, the expansion seems both necessary and overdue. The Philippines continues to face a shortage of scientists, researchers, and engineers, and the PSHS System was established precisely to build this human capital base. Making PSHS education more accessible aligns with the country’s goals for inclusive growth and national development, ensuring that young scientific minds emerge from every province, not just from metropolitan centers.

Yet expansion carries an inherent irony. The more we grow, the more challenging it becomes to maintain quality, consistency, and coherence, the marks of the PSHS identity. When we multiply campuses, do we also multiply excellence, or do we risk diluting it? Expansion is not just a question of numbers; it is a test of systems.

In my review of the PSHS System policy, I initially held the position that expansion, particularly through the establishment of new campuses, should follow only after the system’s implementation, leadership, and performance management mechanisms have been fully strengthened and proven to work consistently across existing sites. Systems matter. Before replication, there must be proof of effectiveness, and before scaling, there must be stability.

Evaluating Readiness Before Scaling

Assessing readiness for expansion requires looking beyond numbers to the system itself. The CIPP model or Context, Input, Process, and Product framework (Stufflebeam, 1971) offers that systems lens.

Context reminds us that expansion should stay true to the PSHS mandate- to nurture future leaders in science and technology. Input highlights the need for strong governance, capable leadership, and sufficient resources: while central direction is solid, campus capacity, infrastructure, and faculty development must keep pace. Process focuses on consistency- how well policies, curriculum standards, and quality assurance systems sustain a shared PSHS culture of inquiry and excellence. Product points to outcomes: PSHS graduates continue to thrive in top universities, research institutions, and various industries, and long-term mechanisms for tracking and evaluating these outcomes must be well established.

The CIPP lens underscores one truth: expansion is not just about scale but readiness. Systems must be sound, coherent, and proven before they are replicated.

Talent Capture: Reaching More of the Gifted

The law’s intent to expand rests on a compelling logic: there are far more Filipino students capable of thriving in PSHS than the institution can currently accommodate. International benchmarks generally define “highly gifted” individuals as those in roughly the top 1% of their age group, or with IQ scores around 135 and above (Gagné, 2004; Subotnik, Olszewski-Kubilius, & Worrell, 2011). On the other hand, global data compiled by World Population Review (2023), based on Lynn & Becker’s Intelligence of Nations study, places the Philippines’ national average IQ at 81.64. Measures of IQ or giftedness, however, are shaped by multiple factors, including education quality, nutrition, and socioeconomic context, and should be understood as indicators of potential, not fixed ability.

Even with cautious interpretation, that 1% represents tens of thousands of learners with strong STEM potential. Yet PSHS admits only 1,600 to 1,900 new Grade 7 scholars annually, a small fraction of those who could benefit. This intake, while selective, represents only a fraction of the potential pool. Expanding access to reach a total student population of about 20,000 scholars per academic year would help close or reduce this gap. The Second Congressional Commission on Education (EDCOM II) likewise recommends expanding PSHS capacity to increase the share of gifted students supported by the government (from 1% to 3% of the eligible population).

The numbers make a strong case for expansion. The question now is whether the system can absorb this growth without compromising its defining standards of excellence.

Ensuring Quality in Quantity

The Expanded PSHS Act (RA 12310) rightly champions access, regional equity, and sustained scientific excellence. The next critical step is the Implementing Rules and Regulations (IRR), where vision must turn into workable and enduring systems. Beyond deciding where campuses rise or how many students are admitted, the IRR must protect the quality that defines PSHS.

It should set clear standards for faculty development and leadership succession, uphold consistent quality assurance across campuses, and balance merit-based admissions with inclusion. Infrastructure and resource parity must also be safeguarded to prevent uneven growth. Expansion without system readiness risks weakening six decades of credibility built on excellence, integrity, and service. Replication should not test the system; it should affirm it.

Supporting Expansion, Strengthening Systems

I fully support the spirit of RA 12310. It fulfills the long-standing vision that no Filipino child gifted in science and mathematics should be denied access to quality STEM education because of geography or circumstance. But I also believe that expansion must follow the science of systems- guided by evidence, reinforced by governance, and measured by outcomes.

The PSHS System has proven its quality management system excellence through certifications with international quality standards and the Philippine Quality Awards program.

To sustain this legacy, expansion must reinforce, not stretch, its foundations. For in education, as in engineering, scale without structure leads to instability. And as every scientist knows, what we expand must first be stable.