Timeline for Positive vs. negative reinforcement in Duolingo
Current License: CC BY-SA 3.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 16, 2016 at 14:23 | review | Late answers | |||
| Nov 16, 2016 at 14:52 | |||||
| Nov 16, 2016 at 14:06 | history | answered | cazort | CC BY-SA 3.0 |