Incoming Resources
- Being and event, Alain Badiou ; translated by Oliver Feltham
- Seaweed soup, by Stuart J. Murphy ; illustrated by Frank Remkiewicz
- Hidden ducks, describing and interpreting data, by Renata Brunner-Jass ; content consultant, David T. Hughes, mathematics curriculum specialist
- Tamanos, Sort it by size, by Emmett Alexander ; traducido por Eida de la Vega
- Grupos, [textos [i.e., traducción de] de Olga Colella]
- Sets, sorting into groups, by Michele Koomen
- My first look at sorting
- Let's sort money, by Lauren Coss
- Let's sort by color, by Lauren Coss
- The philosophy of set theory, an historical introduction to Cantor's paradise, Mary Tiles
- Sorting, by Henry Pluckrose
- What in the world?, numbers in nature, Nancy Raines Day ; Illustrated by Kurt Cyrus
- Naive set theory, Paul R. Halmos
- Sorting, photography, George Siede and Donna Preis ; consultant, Istar Schwager