SWBAT (Student will be able to) solve 4 out of 5 systems of linear equations using the substitution method.
This is taken from a lesson I did with an 11th grade summer school math class this summer.
An appropriate assessment was taken at the end of the lesson using an “exit slip” where students were given 5 systems of linear equations and had to solve those using the substitution method.
Going back to my “5 most important mathematics educataion principles” I started this lesson by trying to create student buy in. I did this by having the students graph two lines that I put up on a transparancy using their graphing calculators. I then asked them at what coordinate the two lines intersected. They were able to pinpoint the coordinate fairly accurately by zoomining in to the point of intersection and estimating. None of the students were able to give the exact answer. At that point I encouraged them to research how to find the exact coordinate and report back to me. I further told them that for this lesson we were going to learn how to find that coordinate the old school way, with our pencils and paper.
I believe the lesson’s objective is a measureable one and I was able to assess at the end of the hour that 70% of the students were able to solve a system of linear equations 4 out of 5 times.
I believe that this is an important part of any lesson, especially in mathematics becuase what students learn today will be essential to understanding what we do tomorrow and in the coming lessons. It is also a great indicator of whether or not the teacher is conveying material effectively and can therefore be used to make changes in the way that material is delivered, because, as we all know, not all children learn the same way–another case for multiple representations…