Main Office
Northeast Clinic
3260 Eagle Park Dr. NE 
Suite 117
Grand Rapids, MI 49525
Appointment Only
Southwest Clinic
1388 Baldwin St. 
Suite B
Jenison, MI 49428

(616) 530-2224

Main Office
Northeast Clinic
3260 Eagle Park Dr. NE 
Suite 117
Grand Rapids, MI 49525
Appointment Only
Southwest Clinic
1388 Baldwin St. 
Suite B
Jenison, MI 49428
(616) 530-2224

Meet The Team

The Staff At
EnCourage Institute

The Staff At EnCourage Institute

Mary Rozendal

PhD, ET/P
The founder and director of EnCourage Institute. She has extensive teaching experience in K-16 settings. She has a BA degree from Calvin College and MA and PhD degrees from Michigan State University. She is certified in K-8 General Education, K-12 Special Education and K-12 Music Education. Her research has focused on metacognitive learning strategies, instructional strategies for effective inclusive education, impact of developmental music skills on early reading, and professional teacher development. She is a Professional Educational Therapist with the Association of Educational Therapists, is DIR/Floortime trained, and is a Cogmed Qualified Coach. Dr. Rozendal specializes in identifying the breakdown in learning and development and designing interventions to effectively (re)build processing, knowledge, strategies, and skills for long-term results.

Rebecca Zwart

MEd
A certified teacher in K-8 General Education and 6-8 Language Arts and Math. She has a Bachelor of Arts degree from Hope College, and a Master of Education degree in Reading and Language Arts from Grand Valley State University. She has worked for EnCourage for many years, and in addition to managing the office, she provides interventions and is a Cogmed Qualified Coach. She specializes in math, language arts, study skills and test preparation.

Marcia Harris Last

M.S., BCBA
A child development specialist and behavioral therapist, and has been a part of the EnCourage team for many years. She has a bachelor’s degree from Calvin College and her master’s degree from Erikson Institute. She is a certified P.L.A.Y. Project consultant and has additional DIR/Floortime training. She specializes in addressing developmental needs for children and teens ages 0-18 years. As a Board Certified Behavior Analyst, she supervises the Applied Behavior Analysis services at EnCourage.

Sarah Rubingh

RBT
A certified teacher in K-8 General Education, K-12 Deaf and Hard of Hearing, K-12 Cognitive Impairment. She earned her degree from Grand Valley State University. She has over 20 years of experience in a variety of educational settings working with students with various learning needs. She specializes in integrating processing therapies with academic interventions, test preparation, executive function coaching, study skills, and Behavioral Therapy for children with autism. She is bilingual in English and American Sign Language.

Becky Tasma

MA, RBT
A certified teacher in K-8 General Education, Grade 9 Language Arts and Music, and has a master’s degree with an early childhood endorsement. She has taught in a variety of settings for more than 30 years and makes learning fun for her students. She excels at incorporating different learning strategies to meet the needs of individual students. She is a certified P.L.A.Y Project Home Consultant and works with children and teens on the Autism spectrum.

Kerry Huizing

MA, RBT
A certified teacher in K-8 General Education, 6-8 Language Arts, K-12 School Counselor. She is a Calvin College graduate, and obtained her master’s degree from Western Michigan University. She is passionate about teaching and has over 24 years of experience. She loves working with children and young adults to help them be the best students and members of society that they can be. She specializes in reading and writing interventions, and Behavioral Therapy for children and teens on the Autism spectrum.

Shari Farrell

MA
Has over 10 years of experience in education working with children, teens and adults with special needs in a variety of settings, she has found working with people who have been diagnosed with autism her favorite. She obtained her Masters of Arts degree in Special Education and autism endorsement from Liberty University, and is currently taking post-masters level classes to become a BCBA.

Kathleen Veenstra

An experienced Secondary teacher. She earned her Bachelor of Arts degree from Michigan State University, and a Post Graduate Certificate in Secondary Education from the University of Sussex, England. She has experience working with children and adults. She specializes in reading and writing interventions and works with children on the Autism spectrum

Denise Montebello

A certified teacher in K-8 General Education. She has a bachelor’s degree from Calvin College and a master’s degree in reading from Western Michigan University. Her teaching experience includes elementary classroom teaching and homeschool teaching. Kathleen specializes in reading, writing and math interventions.

Sally Frahm

An experienced teacher in grades 3-12. She earned her education degree from Cornerstone University. She enjoys working with students one-on-one and in small groups, and has experience teaching in Montessori and Christian schools. She has also taught middle school and high school homeschool classes for many years. She specializes in math and language arts interventions.

EnCourage Institute for Teaching and Learning

Our Mission is to provide expert instruction to all students, helping them grow into successful life-long learners.
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