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Sunday, May 15, 2011

Momentum Experiment


Experiment
   For this weeks application assignment I selected the question how does the steepness of a slope and mass affect a collision outcome?
    I reenacted an experiment that I utilized with my fourth grade learners, in this experiment learners have two reconstruct ramps, one with a height of 6.5 inches and the other with the height of three inches the height is obtained by utilizing wooden blocks; in order to control the experiment only this variable differs.  For the ramp we utilize a ruler securely fastened at the edge of each block, the grove in the plastic ruler serves as an excellent ramp for balls of varying sizes.  In this case I used a marble as my object that is to gain momentum rolling down the ramp; this was chosen because of its weight and my previous knowledge of how a marble can gain momentum and transfer force.  Once the marbles are released they are to roll into a lightweight paper cup with an open whole cut into it facing the ramp at a distance of 6cm from the base of the ramp, the goal is to get the paper cup to travel at a distance of 4cm or more once the marble is released gains momentum and hits the inside of the cup.
Trials/Challenges
Experiment
   For this weeks application assignment I selected the question how does the steepness of a slope and mass affect a collision outcome?
    I reenacted an experiment that I utilized with my fourth grade learners, in this experiment learners have two reconstruct ramps, one with a height of 6.5 inches and the other with the height of three inches the height is obtained by utilizing wooden blocks; in order to control the experiment only this variable differs.  For the ramp we utilize a ruler securely fastened at the edge of each block, the grove in the plastic ruler serves as an excellent ramp for balls of varying sizes.  In this case I used a marble as my object that is to gain momentum rolling down the ramp; this was chosen because of its weight and my previous knowledge of how a marble can gain momentum and transfer force.  Once the marbles are released they are to roll into a lightweight paper cup with an open whole cut into it facing the ramp at a distance of 6cm from the base of the ramp, the goal is to get the paper cup to travel at a distance of 4cm or more once the marble is released gains momentum and hits the inside of the cup.


 
Class Presentation
Presenting scientific studies in this
structured method allows my learners to maintain focus on the goal that they wish to achieve while simultaneously having the ability to utilize prior knowledge and skill to determine in realist terms how the goal will be accomplished, although this model can only be utilized with my fourth and fifth grade learners (because of it level of independence) I feel that this would allow them the ability to structure their own ramps (after mine are modeled) and preserve continuity of the variables during the controlled experiments.  I find that when presenting concepts, laws or theories it is best achieved through trial and error, enabling my learners to experience these concepts and introduce them to an abundance of other laws and concepts.  While the learners are constructing their ramps I would inform them that they are using the practices of engineer’s, opening a Segway to the presentation of this area of STEM studies and the engineering skill they are utilizing.  In order to make this lesson more appealing I would most likely add a time factor to the completion of the experiment, allowing the learners to believe that is was a sort of race against other teams to correctly record data conduct the experiment and alter variables accordingly.






Sunday, March 20, 2011

Iceberg Research

As I viewed the NRDC's website, I found out that there are a great deal of underlying effects that will or have already occurred due to the rapidly melting Ice caps in the Arctic region.  The speed at which this is happening is devastating, and I think we all need to begin to take measures to ensure we conserve and utilize energy efficiently.
Check out the article on global warming and the polar Ice Caps
http://www.nrdc.org/globalwarming/qthinice.asp#3.
What efforts are we going to make?
Let's post some of the things that we are going to do to conserve and save our planet.....

Icebergs

This week we are blogging about an experiment that we need to conduct utilizing conformation inquiry process this is really exciting, I think I will conduct the experiment and have a group of fifth graders do the same, we can share our projects together....
I can also present to them the effects of global warming and how we can all do our part to save energy.
For this weeks blog my professor presented some thought provoking questions:
What happens if the polar Ice caps melt?
A basic prediction that I could formulate based on my knowledge of the size and mass of Ice caps is that the result of an ice cap melting would cause oceans to overflow, possibly creating flooding and turning most of the surrounding land into a marsh like area.  I plan on conducting research momentarly to test my initial prediction......
I will return shrtly with the results......

Sunday, March 13, 2011

Science Lesson plan

So this week i had to complete a science lesson plan.  I teach elementary science and was recently informed by my schools administration that I had to present the NY State HIV/AIDS Curriculum to my elementary learners......

Im sure we all know where this could go, so I focused mainly on germs their origin and how they are usually transmitted.  I began with a sort of history of germs and presents some of the studies of Pasteur, immunity and vaccines.
I wish I had more visual aides and hands on activity to engage my learners for this area