Incoming Resources
- Sorting, Lynn Peppas
- Sorting, David Kirkby
- El libro de clasificar de crayola, Jodie Shepherd ; [la traducción al español fue realizada por Giessi Lopez]
- If you were a set, by Marcie Aboff ; illustrated by Sarah Dillard
- Sets, sorting into groups, by Michele Koomen
- Seaweed soup, by Stuart J. Murphy ; illustrated by Frank Remkiewicz
- The Crayola sorting book, by Jodie Shepherd
- Roads to infinity, the mathematics of truth and proof, John Stillwell
- Hidden ducks, describing and interpreting data, by Renata Brunner-Jass ; content consultant, David T. Hughes, mathematics curriculum specialist
- Introduction to the theory of sets, Joseph Breur ; translated by Howard F. Fehr
- Dave's down-to-earth rock shop, by Stuart Murphy ; illustrated by Cat Bowman Smith
- My first look at sorting
- Grouping at the dog show, by Simone T. Ribke
- Sorting and sets, by Henry Pluckrose
- Sort it!, by Nadia Higgins
- I know same and different
- Sorting at the ocean, Jennifer Rozines Roy and Gregory Roy
- Sorting and sets, by Henry Pluckrose
- 3 little firefighters, by Stuart J. Murphy ; illustrated by Bernice Lum
- Abstract sets and finite ordinals, an introduction to the study of set theory, G.B. Keene
- Sorting, by Henry Pluckrose ; mathematics consultant, Ramona G. Choos, Professor of Mathematics
- Schaum's outline of theory and problems of set theory and related topics, Seymour Lipschutz
- Sorting at the market, Tracey Steffora
- A first book about mixing and matching, Nicola Tuxworth