Johnna J. Bolyard

Second-Graders’ Mathematical Practices for Solving Fraction Tasks

Patricia S. Moyer-Packenham, Stephen I. Tucker, Johnna J. Bolyard, 2014 .

What Are Virtual Manipulatives

Johnna J. Bolyard, Patricia S. Moyer, Mark A. Spikell, 2002 .

Revisiting the Definition of a Virtual Manipulative

Patricia S. Moyer-Packenham, Johnna J. Bolyard, Johnna J. Bolyard, 2016 .

A comparison of the impact of two virtual manipulatives on student achievement and conceptual understanding of integer addition and subtraction

Johnna J. Bolyard, Johnna J. Bolyard, 2006 .

Virtual manipulatives in the K-12 classroom

Johnna J. Bolyard, Patricia S. Moyer, Mark A. Spikell, 2001 .