Virginia Tech® home

Determining the Validity of an Argument

Determining the Validity of an Argument

An introductory task that supports students' understanding of what counts as a mathematically valid argument.

norm task for evaluating 3 proofs
This task was designed based on the following references:
Stephan, M. (2020). Sociomathematical norms in mathematics education. Encyclopedia of mathe- matics education, 802-805.
Yackel, E., & Cobb, P. (1996). Sociomathematical norms, argumentation, and autonomy in mathematics. Journal for Research in Mathematics Education, 27(4), 458-477.
Epp, S. S. (2003). The role of logic in teaching proof. The American Mathematical Monthly, 110(10), 886-899. 

Group Discussion

Loading player for https://video.vt.edu/media/1_3jj3ws39...
Loading player for https://video.vt.edu/media/1_8kx6nejb...
Loading player for https://video.vt.edu/media/1_qycm0ebi...
Loading player for https://video.vt.edu/media/1_kvu0a6ne...
Loading player for https://video.vt.edu/media/1_gb8kglk9...