##### Lisa Galano

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#### Recent Reviews by Lisa

Thu Mar 25, 2010 12:14 PM
Newton's Second Law
In Newton’s first law of motion tutorial, it effectively explained how a force is needed to overcome inertia (the tendency to resist any change in motion). Newton’s second law tutorial gives more concrete and mathematical descriptions and demonstrations of what happens when an unbalanced force actually does act upon an object. In the second tutorial, I found it extremely helpful how the tutorial began with the spaceship simulation activity. I felt this simulation will be an easy and effective way to “hook” students’ inquiry of the second law and its components. Plus, this activity could extend itself into wonderful engineering performance task in the beginning of a lesson, as well as, a culminating activity. This will help determine students’ knowledge of the law after studying it. Another one of my favorite components of this tutorial is the “Common Student Preconception” section. This allows the instructor to foresee where students may run into difficulty in understanding the law. Also, since this law is quantitative by nature (which often deters students who do not feel confident in math), the teeter totter simulation is an easier way to think about keeping the balance within the equation without primarily computing the numbers. I definitely plan on using this tutorial when teaching Newton’s second law. Thanks!

Mon Feb 22, 2010 11:05 AM
Teaching Newton's First Law
"Force and Motion: Newton's First Law" is a resource that I will continue to utilize in my classroom. The coin with index card and the dishes with tablecloth are demonstrations which I have previously utilized in my classroom. These two demos are quite helpful in students' understanding of the first part of Newton's Law. However, in the past, the second part of Newton's First Law has been more difficult to demonstrate. With this resource, I will actually now be able to show the students the "Ball on a Curved Track Animation" which I believe will help clarify many of the students misconceptions about the second half of the first law.