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Puerto Rico Department of Education
Guillermo Riefkhol

Puerto Rico Department of Education

Guillermo Riefkhol

Patillas, PR

183 students

High School, Grades PK–9

(787)839-8231

#6

Best Student:Teacher Ratio in PR

183

Students

8.7:1

S:T Ratio

School Snapshot
Key metrics at a glance
Student-Teacher Ratio

9:1

A+

students per teacher
Excellent
This Week at Guillermo Riefkhol – April 17, 2026

22 students practicing on Varsity Tutors

SAT Prep

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5

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B

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D

1520

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students

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ACT Prep

36

ENG

MATH

READ

SCI

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students

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Math

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students

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English

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students

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Science

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students

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Academic Grades

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Academic Resources

Typical courses and practice resources for students at Guillermo Riefkhol

Biology
9

Cell biology, genetics, evolution, and ecology

AP Biology
AP

College-level biology with lab component

Chemistry
9

Atomic structure, reactions, and stoichiometry

AP Chemistry
AP

College-level chemistry with lab component

Physics
9

Mechanics, waves, electricity, and magnetism

AP Physics 1
AP

Algebra-based mechanics and waves

Environmental Science
9

Ecosystems, human impact, and sustainability

AP Environmental Science
AP

College-level environmental science

World History
9

Global civilizations from ancient to modern times

AP World History
AP

College-level world history analysis

U.S. History
9

American history from colonization to present

AP U.S. History
AP

College-level American history

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School Details
Address

Carr 3 Km 118 Hm 3, Patillas, PR 00723

Phone

(787)839-8231

District

Puerto Rico Department of Education

Academic Calendar
2025-2026

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