Maintenance Notification: Please note that web services requiring account login will be unavailable on Sunday, September 25 from approximately 7:00 a.m. until 2:00 p.m. ET for scheduled maintenance. Impacted services that will be unavailable during that time include My NCTM, creating an NCTM online account, conference registration, conference proposal submission, joining or renewing membership, commenting on blog posts and content, and purchasing articles and products. We apologize for the inconvenience.

Listening responsively

  • Listening responsively

    Kadian M. Callahan
    Opportunities to explore prospective elementary teachers’ ideas about the perimeter and area of polygons require more than simply engaging the teachers in mathematical discourse.

    Add Comment

    Text Only 2000 character limit

    Page 1 of 1