• Meet the Teachers

6th Grade Social Studies Staff

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Attended California State University Long Beach B.A. - Multiple Subject

Mrs. Kenia Acosta

I love to teach our young scholars because they are indispensible to a better and brighter future!

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B.A. Human Development M.S. TESOL M.A. Educational Administration GATE Certificate CLAD Certificate

Ms. Tracy Eisenhart

I was inspired to be a teacher at a very young age. All the way through middle and high school, I worked really hard to make sure I could get into college. In college, I studied Human Development and then earned a teaching credential. I taught 14 years in Pomona Unified School District and now 21 years in Rialto Unified School District. I love it when children learn something new and they are inspired to reach higher heights.

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Attended Chapman University and UCR BS, MA and GATE

Ms. Heidi Hetzer

I have been teaching in the district since 1999. I strive to help your child reach their full potential. I am a firm believer in reading and kids making the world go around. Personally, I love travel, cooking, reading and everything about my big fur babies. I look forward to seeing your child each day. Always feel free to contact me. 

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Attended Cal State University San Bernardino and Azusa Pacific University BA English (CSUSB) MA Education Technology

Mrs. Carol Hilbig

I have been a teacher in the district since 1992. I taught at Bemis, Dunn, Kucera, Rialto Middle and have served as a full time mentor to new teachers as well. I have two kids, Grace (19) and Garrett (18). I love to write and I enjoy sharing my love of writing to my students. My 5th grade teacher inspired me to become a teacher.

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Ms. Kimberly Soto

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Attended University of North Carolina, Cal State San Bernardino, and Grand Canyon University BS in Business M.Ed. in Educational Administration MBA Ed.D(c)

Mr. John Wilson

I believe in preparing students not just academically but for life also.

7th Grade Social Studies Staff

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Bachelor's in Medieval History Master's in Education

Mrs. Lisa Penrod

Hi! I'm Mrs. Penrod and I'm a 7th-grade history and AVID teacher for more than 20 years right here at RMS. Teaching the next generation the history of the world is one of the most important things I do every day.

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Attended Chaffey College, California Polytechnic State University, Cal State SB, UCR, and USC BA Liberal Studies w/ Concentration in Math and Social Studies MA Education TESOL

Ms. Agnim Rivas

I was born in El Salvador and English is my second language. I have 3 children and have been teaching for 15 years. I teach history and I love to travel the world.

8th Grade Social Studies Staff

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Attended University of California, Irvine (UCI) BA in Social Sciences MA in Curriculum and Instruction

Mr. Omar Herrera

I started teaching for R.U.S.D in 2006. I have taught all three middle school grades and all core class subjects. I became a teacher so that I can influence the next generation of students to be the best, caring, and most successful adults they can be.

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B.A. Political Science & History M.A. Education

Mr. Bruce Knowles

I have been teaching 8th Grade at Rialto Middle School since 2008. In that time I have been able to watch many students find success throughout the course of their 8th-grade year and continue on through high school, college, and graduate school.


My passion for teaching social studies comes from my desire to help create a society of people who are well educated, reasonable, and who are prepared to contribute to the growth of a great culture through all areas of the arts and sciences. My studies have included history, political science, as well as business and I hope to encourage students to find their own passion and develop the cognitive resources to fulfill them. Above all, I hope to help students find enjoyment in learning for self-improvement so that they may lead themselves to find a productive place in our society.

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Attended Crafton Hills College, Azusa Pacific University, Cal State San Bernardino and Grand Canyon University BA in Education w/ emphasis in Social Science, Math, and Science GATE certificate Masters Degree in Curriculum and Instruction

Mrs. Raquel Lytle

I love to teach History. It is my passion. I don't consider teaching History a job or a career, I consider it my lifelong love. I continue to teach and learn every single day. In my spare time, I love to spend time with my family.