About Bonnie Leaf

Bonnie Leaf is a private Speech-Language Pathologist who specializes in evaluation, differential diagnosis and treatment of children with Childhood Apraxia of Speech (CAS) and other challenging speech sound disorders. She has over 30 years experience working with young children and their families in a variety of educational and clinical settings and is passionate about providing quality assessment and intervention services.  Bonnie frequently presents on speech/language topics to a variety of audiences and is known for workshops that are energetic, interactive and packed with “use it tomorrow” practicality. In her leisure time, Bonnie loves to cross-country ski, mountain bike, hike and play with her wonderful grandchildren.


Education & Training

  • 1982 - Minot State University, ND;
    Master of Science in Speech Language Pathology                 
  • 1981 - Minot State University, ND;
    B.A. in Speech-Language Pathology, Graduated Magna Cum Laude


Certification & Licensure

  • 1982 to present - Certified member of Speech-Language & Audiology Canada
  • 1983 to present - Hanen membership.  Certified to deliver the following Hanen programs: It Takes Two To Talk, Learning Language and Loving It, Teacher Talk, Target Word, More Than Words, TalkAbility, ABC and Beyond.
  • 1998 to present - Registered Member of Alberta College of Speech Language Pathologists and Audiologists 
  • 2005 to present - Alberta Speech-Language Association of Private Practitioners


Professional Development

Bonnie is committed to continuing education and implementing evidence based strategies in her clinical practice. In the summer of 2014, she was chosen from a large number of applicants to be one of 25 clinicians invited to attend CASANA’s CAS Intensive Training Institute at Duquesne University in July 2014 and following completion of the course was awarded with the designation “CASANA Recognized for Advanced Training and Expertise in Childhood Apraxia of Speech”.  www.apraxia-kids.org/about-casana/casana-recognized-clinicians

Continuing education related to motor speech disorders includes but is not limited to the following:

  • Apraxia Kids National Conference 2017, 2018, 2019
  • Let's Start Talking Training Program  August to December 2016  Dr. Megan M. Hodge 
  • CASANA National Conference July 2016
  • CASANA National Conference July 2015
  • CASANA Intensive Training Institute  July 2014
  • PROMPT Bridging Trained  http://www.promptinstitute.com
  • Children with Apraxia of Speech: The Kaufman Early Intervention Program
  • Differential Diagnosis of Motor Speech Dysfunction in Children – Deborah Hayden
  • An Overview of Dynamic Temporal and Tactile Cueing for Childhood Apraxia of Speech and Other Motor Speech Disorders – Edythe Strand
  • P.R.I.S.M.  A Model for Successful Treatment of Childhood Apraxia of Speech – M. Fish
  • Clinical Grand Rounds: Reviewing the case of a 3 year old with a Mixed Phonological Disorder/Childhood Apraxia of Speech – Sue Caspari,
  • Demystifying the Principles of Motor Learning for Speech Therapy – E. Mass
  • Sibling Struggles, Support and Survival Strategies – David Hammer 

Testimonials See All

“I was surprised and very happy to see how Bonnie’s therapy techniques made a significant difference for my son. He is now saying words clearer than he has ever done before and we are able to add new words to his vocabulary using the tec…

Trina S., Parent

Intervention Learn More

Bonnie is available for direct assessment and treatment services as well as to consult with parents, treating Speech-Language Pathologists and other professionals regarding Childhood Apraxia of Speech, persistent speech sound disorders and evidence-based practice.  

Workshops Learn More

Bonnie provides a variety of seminars and workshops designed to give participants the knowledge, skills and tools they need to effectively support children with speech sound disorders.  Bonnie is known for workshops that are energetic, interactive and packed with “use it tomorrow” practicality.