Browse

You are looking at 1 - 10 of 31 items for :

  • Similarity and Congruence x
  • Refine by Access: All content x
Clear All
Restricted access

Building Coherence and Progression on Sound Frameworks

Travis Lemon and Scott Hendrickson

A robust framework can support teachers and their students’ learning.

Restricted access

It’s Off the Screen: Unearthing Megagons Through Technology

Sean Nank, Jaclyn M. Murawska, and Steven J. Edgar

Mathematical action technology can foster equitable student discourse. Students engage in cycles of proof to create, test, and revise conjectures through dynamic exploration of the Pythagorean theorem.

Restricted access

Mathematical Connections: Many Faces of the Truncated Icosahedron

Enrique Ortiz

Examine this geometric figure in light of a set of connections among fields such as architecture, geometry, science, sports, technology, and associated uses, models, and discoveries.

Restricted access

Exploring Geometry with Origami One-Cut-Heart

Lauren R. Holden, Yi-Yin (Winnie) Ko, Devon W. Maxwell, Connor A. Goodwin, Cheng-Hsien Lee, Jennifer E. Runge, and Elizabeth B. Beeman

One-Straight-Cut-Heart activities can help teachers support students’ engagement with geometry and can deepen students’ geometric reasoning.

Restricted access

Understanding Similarity through Dilations of Nonstandard Shapes

Marina Basu, Karen Koellner, Jennifer K. Jacobs, and Nanette Seago

This set of tasks progressively engages students in geometric proportional reasoning.

Restricted access

Exploring Sequences Related to Medial Triangles

José N. Contreras

Restricted access

Puddle Play!

Deanna Pecaski McLennan

Restricted access

Student Engagement with the “Into Math Graph" Tool

Amanda K. Riske, Catherine E. Cullicott, Amanda Mohammad Mirzaei, Amanda Jansen, and James Middleton

We introduce the Into Math Graph tool, which students use to graph how “into" mathematics they are over time. Using this tool can help teachers foster conversations with students and design experiences that focus on engagement from the student’s perspective.

Restricted access

The Shape of Art: Mathematics Connections

Enrique Ortiz

Restricted access

Asked & Answered

Each month Asked & Answered highlights selected threads from the MyNCTM community. MyNCTM is an online community where NCTM members can ask questions, start and join discussions, and interact with education experts. We encourage you to join the conversation at https://my.nctm.org.