Maria Palanca

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Recent Reviews by Maria

Tue Mar 16, 2010 2:20 PM
5 Action-Reaction
Like the previous tutorials, I found this one to be very informative and helpful. Newton's 3rd Law, “for every action there is an equal and opposite reaction” gives students the misconception that "reaction" is just a sequence in which one force leads to the other and that word “opposite” applied to that reaction acts on the same object. The third law in simple terms is, "anytime one object is exerting a force on a second object, the second object is exerting a force on the first that is equal in size and acts in the opposite direction". Getting that across is the challenge. The interactive simulations help support and show that explanation on the third law. I find that doing a lot of hands-on and interactive activities in my class help them understand the lesson a lot better. I will definitely be using this tutorial, and the other tutorials as well, in my future lesson plans.

Tue Mar 16, 2010 1:53 PM
5 Newton's Second Law of Motion
Of all Newton's Laws of Motion, this 2nd one has always been the most difficult for my kids to grasp. They struggle to understand the relationship between force's strength, an object's mass, and amount of change in an object's motion (acceleration). However, I found this tutorial to be very informative and helpful. SO I try to find better, more creative ways of presenting this lesson. The interactive simulations really showed the relationship between force, mass, and acceleration and how changing or applying different variables can affect their balance. I did the hands-on activity with the jet balloons in my class and my students seemed to understand the relationship better. I can show the interactive simulations on the StarBoard in my class and have students change the variables and see different results. This tutorial definitely helped me understand this law better, as well as gave me new ideas to apply in my class.

Tue Mar 16, 2010 11:19 AM
5 Newton's First Law of Motion
I really liked the online tutorial on Newton's First Law of Motion. I can say I knew this already but after going through the tutorial I can say that I understand it better. It was very in depth and easy to understand. Most Science reference materials use very complicated terms that are hard to understand, let alone my students who are only in 4th and 5th grade. I also found the interactive videos and hands-on activity suggestions really helpful, I will definitely use them in class. I must say I have done some of those activities but the videos would be a good addition to better explain the concept to my students. Having the quiz at the end of each topic also helped me assess my grasp of this New ton's First Law.