If you remember anything from your school days, it’s probably that learning must be structured and follow a set path. This structure means that you’re only supposed to move onto other skills, once you’ve mastered the one you’re currently practising.
However, a number of studies suggest that a more effective way of learning is to interleave. This approach is promoted by Dr. Robert Bjork, the director of the UCLA Learning and Forgetting Lab, by Dr. Barbara Oakley, Professor of Engineering at Oakland University and Steven C. Pan, a doctoral candidate at the University of California, San Diego.
In the short-term, block-learning is more effective, but in the long-term, interleaving your studies with difference subjects allows your brain to make many more connections that usual, sometimes creating bridges between the two, usually, unconnected subjects.
The more connections the brain has, the more creative you are able to be and the stronger your memory will be.
I highly encourage you to read Barbara Oakley’s book – A Mind For Numbers: How to Excel at Math and Science (Even If You Flunked Algebra) or take her popular online course Learning How to Learn.