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Meet Our Author

David Costello

Dr. David Costello is an author and professional learning facilitator who focuses on mathematics instruction and learning. David has supported teachers in many roles including as a numeracy interventionist, numeracy coach, numeracy leader, and curriculum consultant. A popular speaker at conferences, David has also instructed numerous university courses on curriculum, differentiation, mathematics, and literacy. Currently a vice-principal in Charlottetown, PEI, David is committed to creating more meaningful learning experiences.

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