Many school reform efforts are seeking new ways to structure the teaching profession. Dr. Mary Laski joins us to discuss a program that integrates pay-for-performance as a key element. Their results show definitively positive effects in both near- and long-term outcomes, and we ponder how monetary incentives may be received at scale.Later, we read how the rate limit for simple learning in lab mice makes rapid practice functionally identical to spaced practice. We consider the implications for interleaved teaching.