##### . Wingert

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#### Recent Reviews by .

Tue Mar 16, 2010 1:32 PM
Newton's Third Law
The article was easy to understand and the activities were helpful. To introduce this law we discussed how rockets work and I utilized the computer lab once again for student-friendly reading and activities related to this law. Afterward, as our lab activity I distributed film canisters which had an Alka Seltzer tab glued to the inside lid. The students filled their canister with vinegar and inverted the canisters outside to observe the results. The students observed that for every force there is a reaction force that is equal in size, but opposite in direction.

Tue Mar 16, 2010 11:29 AM
Newton's Second Law
The article gave quite an insight to this law. It applied to a wide range of physical phenomena. The activities helped enhance the readers understanding of the concept. I took the students into the computer lab so they could use a student-friendly site which contained reading and activities on their ability level. For this law I placed a stone on lined paper on each desk and asked the students to move it using only their breath and record the distance it traveled. Then we replaced the stone with cotton balls and repeated the above. The students noted that the greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

Tue Mar 16, 2010 10:33 AM
Newton's First Law
The article was interesting. It helped the reader gain a better understanding of the concept and clarified any misconceptions the reader or students may have. The activities were fun and added more insight. For this First Law my students utilized tne computer lab to look at child-appropriate sites which also had reading and activities related to the law. After that the students tied a string to a rubberband ball spun it overhead then released it and observed that rather than continuing in a circular path it took off in a straight line.