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#notetype:Basic
#deck:Math::Learning to learn::Interleaving
#tags:math learning interleaving
#columns:Front	Back	Tags
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What is interleaving?	Mixing different kinds of problems or topics in one study session instead of doing them in blocks.	definition
What are the two steps of solving a problem?	Deciding which method it needs, then using the method.	mechanism
Which step does a blocked practice sheet skip?	Choosing the method: it is the same as in the problem before.	mechanism
Blocked sheet of 12, four kinds: how often must you choose a formula?	4 times: once per block.	mechanism
Why does blocked practice feel easier and score higher?	Reusing the last method works on a blocked sheet, so the choosing step is never tested.	trap
A student who always reuses the last formula: blocked sheet vs mixed exam?	75% on the blocked sheet, 25% on the exam, in the program.	trap
Rohrer and Taylor 2007: practice and one-week test scores?	Practice: blocked about 89%, interleaved 60%. Test a week later: interleaved 63%, blocked 20%.	evidence
When does interleaving help most?	When the kinds mixed are easy to confuse, like cones and cylinders (Brunmair and Richter 2019).	evidence
Why do students rate interleaving as least desirable?	It feels harder and practice scores are lower, although the later test is better.	trap
A cheap way to interleave homework	Do problems from the last few sections in one mixed list, and name the method before solving each.	definition