The 10% Challenge

leinwandI’ve heard Steve Leinwand say that it is unprofessional to ask teachers to change more than 10% a year. It is also unprofessional to ask them to change less than 10% a year.

I love this thought that we need to always be growing as professionals, but that our growth needs to be realistic and sustainable. However, I’m also challenged by what 10% change looks like, especially if I present this idea to my fellow teachers.

10-percentHow do you quantify professional growth?
How can you see this 10% change?

Then it struck me. 10% equals one-tenth, which is one out of every ten school days. That means Steve’s 10% is calling for us to try something new once every two weeks. That seems very doable for everyone. Imagine what a math department would like a year from now if every teacher tried something new and effective every two weeks. That would be a total of 18-20 days, or about a entire month of innovative instruction for each teacher. That sounds, realistic, sustainable and exciting.

Let’s all embrace Steve’s 10% Challenge.

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