Discourse and Mathematical Argumentation in the Classroom. Wednesday, June 6, 2012. Computing seems to be an instructional priority despite the fact that the field of mathematics goes far beyond procedures. At its core, mathematics involves exploring , arguing , and justifying .
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Wednesday, June 6, 2012
Kazemi wrote that “press for learning was measured by the degree to which teachers
Traditional Textbook Tasks
If you take any number and multiply it by zero, you will always get a number larger than 100. Do you agree or disagree? Explain.
5 + 1 = _____ + 5
“What should go in the blank so that the following number sentence is true? Who can explain why their answer is correct?”
(Ross, Fisher, & Frey, 2009)
Sentence Starters (Loper and Baker, 2009)
I had 23 teacher moves but only six of them occurred before mathematical arguments:
Pre- and Post-Assessment Data
Individual interview assessments with students in both classrooms focused on:
Some students in both classrooms showed improvement on the assessment.
Students in the focus classroom applied their understanding of properties more frequently than in the contextual classroom.
Students in the focus classroom applied more number pattern strategies to the assessment tasks.
Karin K. Hess, Dennis Carlock, Ben Jones, John R. Walkup