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About Us


Elaine Bissonnette, Behaviour Consultant

Elaine has over 35 years of experience working with children with Autism Spectrum Disorders (ASDs) and their families. She earned her Developmental Services Worker diploma from Algonquin College in l984.  Elaine has extensive knowledge of ASDs from  the assessment stage to interventions using evidence-based practices. Her outstanding knowledge of school, community and home-based programs has earned her an excellent reputation as an experienced hands-on service provider in the Ottawa – Carleton  region.

She participates in various community groups and advisory committees advocating for families and their children.

Certified  PEERS Therapist – Semel Institute UCLA
Member - Ontario Association for Behaviour Analysis (ONTABA)

E-Mail : ebissonn@magma.ca


Elizabeth Todd , Intake Coordinator

Elizabeth has worked with Building Blocks for the past seven years, first as a PEERS co-facilitator, and since 2016, as the intake coordinator. She has also worked independently with families in the community, implementing principles of ABA in order to build and shape communication, social, and self-help skills in children with ASD.
Elizabeth has a Bachelor’s degree in Psychology, a graduate certificate in Autism and Behavioural Science, and a Master’s degree in Social Work. She is also a registered social worker with the Ontario College of Social Workers and Social Service Workers.

E-Mail : etodd087@gmail.com


Lynda-Marie Trifilette

For over seven years Lynda-Marie has worked for Building Blocks as a Lead Facilitator teaching social skills to the boy’s group. She has a Bachelor degree in Psychology, a Master degree in Education, and a Post Graduate Certificate in Autism and Behavioural Science with Honors.

For the last 15 years she has worked for the Ottawa-Carleton District School Board in Autism Units and with the regular population. She is also a trained LEGO® Social Skills Facilitator and uses LEGO® to improve social interaction and communication skills. Lynda-Marie is also an active crisis counsellor registered with the Canadian Counselling and Psychotherapy Association.


Maggie Gomez

Maggie is a seasoned Early Childhood Educator working with children of all ages for 15 years.  For many years, she has owned and operated her own early childhood centre and is now working with children diagnosed with ASD’s.  Her more recent work involves co-facilitating socials skills programs and working with children in the field of ABA as an Instructor Therapist.  Having completed graduate studies specializing in Autism and Behavioural Science, Maggie brings knowledge of ABA principles to the team and is excited to be part of this rewarding field!


Heyam Rabaa

Heyam graduated from Algonquin College with honours as a Development Service Worker. Prior to graduating, Heyam began working with children diagnosed with ASD as a therapist implementing in home behavioural programming in teaching communication, social and self help skills.   She continues to co-facilitate in social skill groups with Building Blocks.  In addition to this, Heyam has 7 years of experience working in group homes and has worked as an Educational Assistant in the school board providing one on one support for children in a classroom setting.


Chris Nixon

Chris Nixon is returning to our team after experiencing 10 years as an Early Interventionist with the Nova Scotia EIBI Program.  Chris is a Registered Early Childhood Educator with 15 years of experience working with families and children diagnosed with ASD and other exceptionalities.  She is certified in Pivotal Response Treatment, Picture Exchange Communication System and educated in Positive Behaviour Support  System.  Chris is happy to return to her home town and to teach and learn with the children in the Building Block’s groups.  

Member - The College of Early Childhood Educators


Michele Elstone

Michele is currently working in the school system as a Special Education Technician-ASD.  She has with Building blocks for 5 years.

She works mainly with students who have ASD and some with other exceptionalities.  Michele worked for 20 years as a Speech and Language Assistant, providing speech and language therapy to children under the direction of a Speech Pathologist.  She has worked in both the school setting and in private therapy settings. She also worked as a nursery school teacher for children with ASD implementing both behavioral, communication, social and self-help skills.


Karen Cook

Karen has been a facilitator with Building Blocks since 2017, after receiving her BA in Linguistics and Psychology at Carleton U and a certificate in Autism and Behavioural Science from Algonquin College. She is now pursuing a master’s degree in Education with a special focus on differentiated learning and demand avoidance in K-12 students. Along with Building Blocks, she also works as a Program Coordinator with the ACT Foundation, helping high schools across Canada establish CPR and AED training programs for their students.

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