Education experts have long talked about the importance of high quality, highly effective teaching. But as teachers head back to their classrooms to start another school year, we must ask what it means to effectively teach and how we should measure effectiveness.

One source of measurement – the 2013 – 2014 Educator Effectiveness Report from MI School Data, a report summarizing how Michigan school districts rate the effectiveness of their teachers and administrators – shows we have significant room for improvement in Michigan. Of the state’s 95,885 teachers in 2013 – 2014, 38 percent were ranked highly effective, 59 percent effective, 2 percent minimally effective, and 1 percent ineffective.

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