two to three hours long recorded lectures that exceed 15 min are ineffective the Time magazine article cites research from 1976 long recorded lectures that exceed 15 min are ineffective rather than just delivering content to passive students rather than just delivering content to passive students TIME magazine feature attention spans are hard enough to keep long recorded lectures that exceed 15 min are ineffective Some studies Studies nearly 40 years old long recorded lectures that exceed 15 min are ineffective bodies of research View original post This piece on why lecture is ineffective Why Long Lectures Are Ineffective long recorded lectures that exceed 15 min are ineffective Why Long Lectures Are Ineffective Why Long Lectures Are Ineffective Shorter lessons are more effective the Time magazine article cites research from 1976 long recorded lectures that exceed 15 min are ineffective Why Long Lectures Are Ineffective Why Long Lectures Are Ineffective Why Long Lectures Are Ineffective Studies nearly 40 years old the Time magazine article cites research from 1976 10-18 minutes short long recorded lectures that exceed 15 min are ineffective Why Long Lectures Are Ineffective long recorded lectures that exceed 15 min are ineffective artigo recent article he wrote for Time research has shown long recorded lectures that exceed 15 min are ineffective Time Ideas rather than just delivering content to passive students long recorded lectures that exceed 15 min are ineffective engage “Why lectures are ineffective,” Salman Khan the Time magazine article cites research from 1976 Why Long Lectures Are Ineffective studies long recorded lectures that exceed 15 min are ineffective the Time magazine article cites research from 1976 the Time magazine article cites research from 1976 Why Long Lectures Are Ineffective typical student can digest roughly 20 minutes of lecturing long recorded lectures that exceed 15 min are ineffective Studies article artigo long recorded lectures that exceed 15 min are ineffective long recorded lectures that exceed 15 min are ineffective Why long lectures are ineffective Why Long Lectures Are Ineffective 10 to 18 minute window of optimal focus why lectures are ineffective the Time magazine article cites research from 1976 Why Long Lectures are Ineffective. least effective form of teaching Students remember best