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Dr David Costello

@dr_costello

Author of #math books. Most recently #WhatsMissingInMathInstruction, #MessingAroundWithMath. Principal, Speaker, Workshop Facilitator.
Canada costellomath.com Joined October 2015
1.9K Following 3K Followers 9.7K Posts

Latest posts 5

Dr David Costello @dr_costello
I’m looking forward to the @researchEDCan conference and sharing how #math instruction can be strengthened to support student learning!
#onted
Nidhi Sachdeva, PhD @nsachdeva2019 Sep 30
Declining math scores are worrying us all and hence we will spend extra time discussing the topic at @researchEDCan in Toronto on Oct. 24th.
@dr_costello will discuss what's missing in math instruction!
Join us.
#mathed #onted
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