PPP213: Interleaved Practice (Couldn’t they come up with a better name?)

I learned a new word this summer.

Here is a great definition from the University of Arizona, Academic Affairs “Interleaving is a process where students mix, or interleave, multiple subjects or topics while they study in order to improve their learning. Blocked practice, on the other hand, involves studying one topic very thoroughly before moving to another topic.”

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Interleaved in other academic studies

Before we talk about how this works for piano lessons, here are a couple of examples related to school.

One article http://pianopracticeassistant.com/interleaved-practice/ I read used learning the state capitals as an example. You could recite 10 times in a row, “Montgomery is the capital of Alabama. Montgomery is the capital of Alabama” and then “Juneau is the capital of Alaska. Juneau is the capital of Alaska.” You might feel like you’re learning the state capitals but the information is only floating around in your short-term memory.

So, you might take a varied approach and try a group of states, “Montgomery is the capital of Alabama. Juneau is the capital of Alaska, Phoenix is the capital of Arizona.”. What happens here is that you associate Montgomery, Juneau, and Phoeniz together but you haven’t associated each city with its state.

With an interleaved approach you would mix up the order of the states each time and include several states in a group, maybe 10 or more. Scientists tell us we can only hold seven things in our short-term, working memory at a time. So working with ten state capitals in random order would be the best way to put these facts into long-term memory that can be recalled at test time.

Let’s talk about math. My kids learned songs at school that taught them the multiplication tables. That method worked fine for my three older kids but not so well for Tracy. What she really learned was the sequence 3, 6, 9, 12, 15, 18, 21, 24, 27, 30. When she needed to calculate 3×7 she couldn’t recall that information instantly, she had to recite the sequence. This wasn’t a problem until she moved to upper elementary and middle school where she started learning long division. It took forever for her to do her school work because she couldn’t recall multiplication facts from long-term memory. She had to calculate the multiplication before she could get to the division. As you can imagine, this extra work not only caused frustration but left lots of room for mistakes and miscalculations.

When I was learning to play the piano, I remember working on one song and playing it until I made a mistake. When the mistake happened, I did not stop to analyze the tricky part. I didn’t study that measure to help my fingers learn what to do. I simply started over from the beginning, hoping my momentum would help me get past the hurdle of that hard part in the music.

Other types of practice

With my own students, I try different approaches to learning new music and how to practice it at home.

  1. Varied approach – try hands apart, slowly, work in layers – correct notes and rhythms, dynamics, phrasing, etc. but never really get to musical fluency and expression

  2. Small sections, small sessions – play the same part over and over, mindless repetition but not really making neural connections. Feels successful at the end of that practice session but when you come back to that piece or section, you can’t remember how to play it. It never reached long-term memory.

With interleaved practice, a lesson might look more like this. The student and I will work on one song or concept for a bit, then take a break from that to work on something else and come back to the first thing once more. This helps me know if the student is really starting to understand the concept.

At home, rather than playing one song 9 times and another song 9 times, a piano kid might practice each song 3 times in a row and then alternate for three rotations. They will still get the same number of repetitions but switching songs sooner and more often will help make stronger neural connections in their brain. This approach is much harder on the front end and much more effective on the back end.

There are a couple of different theory workbooks I like to use with my students. As I’ve learned about interleaved practice this summer, I’ve come to appreciate them both for different reasons.

One book focuses on one concept for an entire lesson, 3-4 pages. If it is identifying notes on the staff, students will have a page full of notes to identify – lots of repetition of that single concept. The next lesson might be all about writing counts for rhythm patterns. Once again, they perform that task over and over before they learn a different concept.

The second book includes 5-7 different concepts in a single lesson. The student will identify 7 or 8 notes on the staff for one question and the next question will have 4 measures for them to write the counts. A third question will ask them to identify key signatures. In the next lesson in the book, some of the same types of questions are asked and new ones are introduced.

The second theory workbook is my go-to for most students. The first workbook is the resource I use if a student has completed the interleaved theory book but still need some review to master that level of theory. Even with the ‘one-concept-at-a-time’ book, I don’t have students complete a full page of the same thing, mindlessly repeating without really learning and retaining. They like it when I tell them to do only half the page or every other measure. This prevents reinforcing the wrong thing if they misunderstand the question and it leaves room for more review if we need it later.

Try this at home

Talk to your teacher about how they would recommend interleaving your piano kid’s practice. But here is a schedule you could try with your piano kid this week. It includes each of the practice methods at the time they can be most useful.

If your piano kid is studying three songs, we’ll call them A B C, this week, try this plan:

Day 1 Start with a blocked practice: A A A B B B C C C

This will help you become more familiar with each piece. As you play each piece, make note of any problems or mistakes.

Day 2 Focus on the difficult parts of each song.

You don’t want to practice and reinforce mistakes so get those corrected early. If you’re really stumped, communicate with your teacher. I promise they would be thrilled to help you now so that you are more prepared for your lesson next week.

Day 3 Vary the songs in a predictable order: A B C A B C A B C

With each set of songs, notice if you are still having glitches. Start adding musical expression to your music; dynamics, phrasing, fluency.

Day 4 Vary the songs in random order: B A C A B C B C A

This builds in another level of difficulty. It is challenging to change the music so frequently. Your brain is working much harder and new mistakes may begin to occur. Stop and figure out what happened; fix the problem, don’t ignore it or hope it won’t happen again.

Day 5 Vary the songs in random order again: C B A B A C A B C

Your music and the skills needed to perform your music are starting to find a good place to stay in your long-term memory. When you are put to the test (ie at your next piano lesson) you will be amazed at how well your brain recalls everything you need to play your pieces. Be prepared to catch your piano teacher when they faint and fall out of their chair!

Give this a try for a couple of weeks and let me know how it’s working for you. I’m going to print this schedule and give it to my piano students this week so they can learn this new practice method right along with you.

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