| title | ISBN-13 | year of publication |
|---|---|---|
| Animals Move, 6-Pack: World Windows 1 | 978-1-285-83378-1 | 2013 |
| Earth, 6-Pack: World Windows 3 | 978-1-285-83400-9 | 2013 |
| Level 1 Science Classroom Set Workbook Refill | 978-1-285-83442-9 | 2013 |
| Level 2 Classroom Set Workbook Refill | 978-1-285-83444-3 | 2013 |
| Level 2 Science Classroom Set Workbook Refill | 978-1-285-83445-0 | 2013 |
| Level 3 Classroom Set Workbook Refill | 978-1-285-83447-4 | 2013 |
| Level 3 Social Studies Classroom Set Workbook Refill | 978-1-285-83449-8 | 2013 |
| Levels 1-3 Science Classroom Set Workbook Refill | 978-1-285-83439-9 | 2013 |
| Levels 1-3 Social Studies Classroom Set Workbook Refill | 978-1-285-83440-5 | 2013 |
| Parts Of A Tree Workbook, 6-Pack: World Windows 1 | 978-1-285-83410-8 | 2013 |
| Polar Bears, 6-Pack: World Windows 2 | 978-1-285-83389-7 | 2013 |
| Pumpkins, 6-Pack: World Windows 2 | 978-1-285-83390-3 | 2013 |
| Senses, 6-Pack: World Windows 1 | 978-1-285-83381-1 | 2013 |