Posted in Geometry, MTBoS

One Good Thing, Similar Triangles Activity

I am proud of myself for attempting to blog during the first couple of days back at school 🙂 the struggle is so real.  Today was a late start school improvement day.  These days are devoted to a variety of professional development activities.  Due to this, classes are shortened and I am only moderately used to the schedule on these days so I had to push through and persevere myself today.

My one good thing from my Geometry classes today was the emphasis on measurement skills.  The goal of the day was to have students use similar triangles in a real world scenario and solve for an unknown.  In our case, the students were measuring their heights, standing across from each other with a mirror between them, and determining how far apart they must stand in order to see each other’s eyes in the mirror.  One class had an amazing “a-ha” moment when the pair of students who miscalculated their response and could not see each other’s eyes then corrected their work and had success.  Another class had quite the blunder when due to incorrect measurements they were able successfully see each other’s eyes when they should not have been able to.  Regardless, I was happy with the fact that students got to measure quantities in real life which they need to do more of and that they were engaged in the topic.  I was not happy with our progress toward the learning objective, but as I learned long ago, there is always tomorrow to come back and try it again from another angle.

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