Meet the Leaders of Learning for our Raven Learning Community
Our Science & Project Lead the Way Teachers
Ms. Julia Fleischer
Science Learning Leader
Ms. Julia Fleischer is passionate about science education and has taught science now for 4 years.
She has a Bachelor of Science Degree in Biology, Minor in Chemistry, and a Biotechnology certification from CU Denver. She went on to get her Masters of Science in Teaching and learning through CSU-Global and did the teacher certification program through Western State University. With all of that education, she finds it amazing to still get to learn something new every day from her students!
She loves her family time camping, reading, watching movies, and hanging out with her 2 sons and husband. She is ecstatic to be part of the Riverdale Ridge High School Science team.
Mr. Mark Guengerich
PLTW Engineering & Science Learning Leader
Mr. Guengerich (Mr. G) has taught at Brighton High School since 1998 and is pleased to now join the RRHS team. He grew up in the Upper Peninsula of Michigan and north-central Indiana. Before coming to Colorado he taught at Shahse River School in the Republic of Botswana for 3 years and at Goshen High School in Indiana for 3 years. He loves to travel and spends most of his free time enjoying his family, including occasional camping trips.
Ms. Tina Phibbs
Teacher Lead Learner/Science & PLTW Biomedical
Mrs Phibbs is so excited to be a part of the Riverdale Ridge Community. She can’t wait to share her love
of science and adventures with her students.
Mrs. Phibbs grew up in Greeley, Colorado. She earned her Bachelor of Science degree from Colorado
State University, her secondary science teaching license from the University of Northern Colorado, and
her Master’s Degree in Curriculum and Instruction from the University of Colorado at Denver. She
began her teaching career in the Jefferson County schools teaching at Arvada High School and Everitt
Middle School for 6 years. She took a leave of absence from teaching for 5 years to be a stay at home
mom to her 3 children.
Mrs. Phibbs is currently in her 15 th year of teaching in District 27J. She helped open Pennock K-8, Prairie
View High School, and Prairie View Middle School. She is currently teaching 8 th grade at PVMS.
Mrs. Phibbs has been married for 25 years and has 3 children ages 23, 21, and 19. She also has 2 dogs, 2
cats, a chinchilla, and a turtle. Mrs. Phibbs has also been a gymnastics judge for the past 29 years. She
also enjoys traveling, running, hiking, theatre, and spending time with her family.