posted by: lrose
the possibilities for helping students understand that graphs have real meaning. The fact that they represent what is happening is often not obvious to students. The fact that equations represent what is really happening in the world around them does not cross most of their minds.
With the tools from shodor, it should become obvious to students. Maybe we can help them understand that we did not come up with equations to make their lives miserable, to make science hard to learn or to simplify the science. Equations are a model for reality!!!!!!!
So many tools are available on the web. I even learned a little about searching google. Dr. Panoff was very good at clarifying what has been frustrating when student do labs and we try to anaylze the data.
I wish I was that good at clearly explaining that all measurements are approximations. That no measurement or law in this world is absolute. Even laws that we consider to be absolute like gravity. we say near the surface of the earth it is 9.8m/s2, but that is not true. The exact amount of gravity has to do with the density of the earth and our altitude, just to name to variables.
I liked his saying about constants and variables. Canstants aren’t and variables don’t. In other words constants aren’t constant they can depend on circumstances and are at best an approximation depending on how you round. Variables never vary, they are always x or y or etc.
What a great speaker? I am encouraged. I am almost excited to start school in 2 weeks!!!!!!!!!!!!!!!