![TED Talks Daily (HD video) show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/026/773/small/tedtalks-hd.png)
Summary: Leaving a high-flying job in consulting, Angela Lee Duckworth took a job teaching math to seventh graders in a New York public school. She quickly realized that IQ wasn’t the only thing separating the successful students from those who struggled. Here, she explains her theory of “grit” as a predictor of success.