8Kapur, M. Productive Failure[J]. Cognition and Instruction, 2008, 26(3): 379-424.
9Kaput, M. A further study of productive failure in mathematical problem solving: unpacking the design components[J]. Instructional Science, 2011, 39(4): 561-579.
10Kapur, M., &Bielaczyc, K. Designing for Productive Failure[J]. Journal of the Learning Sciences, 2012, 21 ( 1 ): 45-83.