### General

AlgebraThe Algebra materials consists of 7 chapters that provide in-depth dynamic technology explorations of important topics such as variables, equality, rate of change, and functions.

GeometryThe 7 chapters in the Geometry materials engage learners with how dynamic approaches to geometry can change the ways students understand concepts such as properties of polygons, transformations, similarity, and symmetry.

Data Analysis and ProbabilityThere are 6 chapters in this set of materials that utilize tools such as TinkerPlots, Fathom, Excel, and graphing calculators to engage in statistics investigations using multivariate data. Topics addressed include distributions, variability, bivariate relationships, probability, and simulations.

Statistics InvestigationsThere are 4 chapters in this set of materials that use large multivariate data and a new free online tool, CODAP, to engage in similar investigations that are in Chapters 1-4 in the Data Analysis and Probability materials. These new materials are developed as part of the ESTEEM project, aiming to enhance statistics teacher education through developing e-materials.

Voices from the FieldA collection of video clips representing how real teachers use technology in their mathematics classrooms. Some clips illustrate how teachers and students use technology in lessons. Other clips show teachers and experts discussing issues related to their planning and implementation of technology.

This project is supported by the National Science Foundation under Grant Nos. DUE 0442319, DUE 0817253, and DUE 1123001 awarded to North Carolina State University. Any opinions, findings, and conclusions or recommendations expressed herein are those of the principal investigators and do not necessarily reflect the views of the National Science Foundation.