Mercedes P. Serralles Elementary School serves 106 students in grades Kindergarten-6.
The percentage of students achieving proficiency in math was 20-29% (which was lower than the Puerto Rico state average of 33%). The percentage of students achieving proficiency in reading/language arts was 30-39% (which was lower than the Puerto Rico state average of 47%).
The student-teacher ratio of 10:1 was equal to the Puerto Rico state level of 10:1.
School Overview
Grades Offered
Grades Kindergarten-6
Total Students
106 students
Total Classroom Teachers
11 teachers
School Rankings
Math Test Scores (% Proficient)
(12-13)20-29%
33%
Reading/Language Arts Test Scores (% Proficient)
(12-13)30-39%
47%
Student-Teacher Ratio
10:1
10:1
American Indian
n/a
n/a
Asian
n/a
n/a
Hispanic
100%
100%
Black
n/a
n/a
White
n/a
n/a
Hawaiian
n/a
n/a
Two or more races
n/a
n/a
All Ethnic Groups
Eligible for Free Lunch
85%
85%
Eligible for Reduced Lunch
8%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), PR Dept. of Education
Frequently Asked Questions
What percent of students have achieved state testing proficiency in math and reading?
20-29% of students have achieved math proficiency (compared to the 33% PR state average), while 30-39% of students have achieved reading proficiency (compared to the 47% PR state average).
How many students attend Mercedes P. Serralles Elementary School?
106 students attend Mercedes P. Serralles Elementary School.
What is the racial composition of the student body?
100% of Mercedes P. Serralles Elementary School students are Hispanic.
What is the student-teacher ratio of Mercedes P. Serralles Elementary School?
Mercedes P. Serralles Elementary School has a student ration of 10:1, which is equal to the Puerto Rico state average of 10:1.
What grades does Mercedes P. Serralles Elementary School offer ?
Mercedes P. Serralles Elementary School offers enrollment in grades Kindergarten-6
What school district is Mercedes P. Serralles Elementary School part of?
Mercedes P. Serralles Elementary School is part of Puerto Rico Department Of Education School District.
Recent Articles
2025 Classroom Size Trends: Are Classes Still Growing?
A 2025 update on U.S. classroom sizes, policy battles, student outcomes, and whether class sizes continue to expand.
Personalized Learning in 2025: Revolutionizing Education
Explore how personalized learning is reshaping education in 2025—insights, policy, impact, and real-world models for students, parents, and educators.
How Bullying Impacts Student Academic Performance in 2025
Explore how bullying harms student achievement, attendance, and well-being — and strategies schools use in 2025 to mitigate its effects.
