G.E · Gabriel Egan · Gabriele Ekam
Shell Education · Teacher Created Materials
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Building Fluency Through Practice & Performance Grade 2 | 978-1-4258-0442-8 (1-4258-0442-X) | 2008 | Teacher Created Materials |
| The History of Number Systems: Place Value | 978-1-4807-5794-3 (1-4807-5794-2) | 2017 | |