Meet Our Educators

At Riverside Preparatory Academy, our educators bring passion, experience, and heart to every classroom, dedicated to helping each student discover their full potential. From individualized attention to a genuine love of teaching, our faculty is committed to creating a supportive environment where students feel inspired to learn and grow.

Grace Castillo

I am excited to begin my fifth year at Riverside
Preparatory Academy as a Math and Science Teacher. I graduated from the School of Engineering and Architecture at Universidad Autónoma de Santo Domingo (UASD) with a degree in Industrial Engineering and have 5 years of teaching experience.

I became a teacher because I am passionate about helping students build confidence, develop critical thinking skills, and discover the joy of learning. I believe every child has the potential to succeed when they are encouraged and supported. Outside of the classroom, I enjoy spending time with my family, going to the beach, cooking, and baking. A fun fact about me is that I originally trained as an engineer before discovering my passion for teaching.

I am looking forward to another wonderful school year, inspiring my students to love Math and Science, helping them grow academically and personally, and continuing to build strong relationships with their families. It’s going to be a fantastic year!

Robert Konczyk

I am excited to join Riverside Preparatory Academy as the Humanities and Performing Arts teacher. I graduated from Full Sail University with my Master of Fine Arts degree in Film Production (and hold a Bachelor’s in Media Studies and Production from Temple University). I am excited to begin gaining teaching experience as part of this amazing team.

I became a teacher because I want to use my knowledge and experience to help students develop the skills needed to succeed. Outside of the classroom, I enjoy all forms of entertainment, and I am actively producing video content. A fun fact about me is that I graduated as valedictorian of my master’s degree program, and I continue to write and direct short films!

I look forward to leading our drama program, staging exciting student performances, and diving into great stories. I can’t wait to get to know my students and their families. It’s going to be a wonderful year!

Haydeeliz Muniz

I am excited to join Riverside Preparatory Academy as the Kindergarten/First Grade teacher! I graduated from Universidad Ana G. Mendez with a Master’s Degree in Management and Strategic Leadership and have one year of teaching experience.

I became a teacher because I love working with children and being part of their growth and learning journey, especially during the important early years of their lives. I look forward to creating a caring, positive, and engaging classroom where my students feel
supported, encouraged, and excited to learn.

Outside of the classroom, I enjoy crafting and am also a small business owner who creates beadable items and custom gifts. I love expressing my creativity and bringing unique ideas to life.

A fun fact about me is that I am looking forward to having an amazing 2026–2027 school year with our K–1 students! I can’t wait to get to know my students and their families and make wonderful memories together.

Muztoba Rabbani

I am excited to join Riverside Preparatory Academy as the Science and Math teacher. I graduated from University of California, Merced with a degree in Material Science and Engineering and have 2 years of teaching experience. I became a teacher because I genuinely enjoy seeing students build a strong foundation in math and science.

Outside of the classroom, I enjoy traveling and documenting my travels. A fun fact about me is I am also a professional photographer.

I am looking forward to helping my students grow, build confidence in themselves, and develop a positive outlook on their future. I can’t wait to get to know my students and their families. It’s going to be a wonderful year!

Milena Rivera

I am excited to join Riverside Preparatory Academy as the Piano teacher. I graduated from University of Central with a bachelor’s degree in Education and have 27 years of teaching experience. I became a teacher because I want to equip students with the skills and knowledge to be able to live a life with the MOST opportunities.

Outside of the classroom, I enjoy planting, home improvement projects, traveling, and singing worship to my Wonderful Counselor, Almighty God, Everlasting Father, and Prince of Peace. A fun fact about me is that I’ve visited eight countries around the world in the last seven months!

I am looking forward to seeing my students blossom, and can’t wait to get to know my new students and their families. It’s going to be a wonderful year!