In 2012, well-known education publisher Carson-Dellosa – not so much a textbook publisher but rather one that makes supplemental materials and “classroom decoratives” like charts and manipulatives – launched its Learning Spot Library, a sort of App Store that houses its own digital lessons, downloadable activities, and e-books for use across devices like interactive white boards and computers. The content covers language arts, math, science and social studies for grades K-5, all aligned with the Common Core standards, and with audio directions in English, Spanish and French and some Spanish materials.

The library itself is free, while most content costs a few dollars. The 80 Learning Spot Lessons run $9.99 for downloadable units designed for use with interactive whiteboards that include a range of content, activities, printable pages, and ideas for how to use the lessons with groups and classes. Another 1000+ interactive e-books are also available, with prices ranging from $1.99 to $7.99. No mobile app is available, although Carson-Dellosa e-books can be purchased through its Web site and read on mobile devices like smartphones, tablets and e-readers.