You can share this video by copying this HTML to your clipboard and pasting into your blog or web page.
You either have JavaScript turned off or have an old version of the Adobe Flash Player. To view this rating widget you
need to get the latest Flash player.
If your browser allows only "trusted sites" to execute Javascript, you should add the "googleapis.com" domain to your whitelist to allow our Flash detection to work properly.
Got an idea, question, or debate inspired by this talk? Start a TED Conversation.
Diane Laufenberg kertoo meille kolme yllättävää asiaa opettamisesta -- mukaan lukien tärkeän oivalluksen siitä miten opimme virheistä.
Diana Laufenberg teaches 11th-grade American History at the Science Leadership Academy in Philadelphia. Full bio »
Translated into Finnish by Kaisa Partanen
Reviewed by Katja Heikkiläinen
Comments? Please email the translators above.
Just follow the guidelines outlined under our Creative Commons license.
This comment will be attributed to . Not ? Sign Out.