From here to there with Cuisenaire rodsPatricia S. Davidson · First published 1981 · Latest edition 2001Open the Tome
Spatial Problem Solving with Paper Folding and CuttingPatricia S. Davidson, Robert E. Willcutt · First published 1984Open the Tome
One-digit addition and subtraction with cuisenaire rodsPatricia S Davidson · First published 1978Open the Tome
chip trading activitiesgrace k. galton and arlene w. fair patricia s. davidson · First published 1975Open the Tome