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Industrial Chemist, Teacher, & Tutor
35 Years of Experience
 

Chemistry, Physical Science, Life Science

Dave Portelles

Dave Portelles headshot

“guiding learnings toward mastery and success

I have devoted my career to cultivating curiosity and critical thinking in students of all backgrounds, including Honors, AP honors, English Language Learners (ELL), and Neurodivergent learners. With 35 years of teaching experience, I’ve discovered that science is more than a collection of facts—it’s a dynamic process that empowers young minds to think independently and solve problems with confidence.

 

Specializing in life and physical sciences, I bring complex concepts to life through real-world examples, making learning both relatable and engaging. With a strong expertise in Chemistry, I have helped students achieve exceptional success by using structured techniques that guide them toward mastery. My strategies not only enhance understanding but also empower students, building their confidence in their abilities and fostering a deeper appreciation for science.

 

For me, the greatest reward is watching my students overcome challenges they once thought were impossible. My passion for education and dedication to student growth drive me every day. I strive to leave a lasting impact, inspiring generations of science learners.

What Parents Say About Our Tutors

Carrie

Many thanks for helping make her dreams a reality. She is 5 for 5 with college acceptance..including honors colleges and generous merit scholarships

Patricia 

The PSA Tutor was a game changer for our son. He not only helped with our son's learning challenges of ADD and dyslexia by providing great tools and Invaluable study habits but also by having high expectations of his performance. Our Son was able to get into a high-ranking University.

Chris 

PAS tutors first helped my son in high school, and they continue to tutor him in college. They not only put him at ease but help him take more effective notes, manage his time, and better understand the subject

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