CK-12 FlexBook 2.0 vs TESSA OER
| CK-12 FlexBook 2.0 | TESSA OER | |
|---|---|---|
| Free plan | Yes | Yes |
| Paid from | Free | Free |
| Platforms | Android, iOS, Web | Web |
| Free plan | Yes | Yes |
| Science scope | k-12 science | |
| Interactive simulations | Yes | |
| Guided lessons | Yes | |
| Assessment tools | Yes | |
| Supported platforms | Browser on laptop, desktop, Chromebook, tablet, or mobile device | |
| Remix and adaptation | Yes | |
| Content review | Yes |
Listed together in Best Open Educational Resource Platforms