Comment: Re:Also (Score 1) 309
Comment: Re:Also (Score 1) 309
Comment: Re:Also (Score 1) 309
Comment: Re:Not news in the least (Score 1) 310
I'm not saying that
if you get wrong results (although your data shows it) you get bad mark.
I'm saying that, in an educational setting, the student should be performing an experiment the teacher knows the outcomes of. If done properly, result A is produced. If poor procedure is followed, result B is the expected result. The student would be expected to perform the experiment to the best of their ability, trying to follow proper procedure. Ideally, they perform the test at least three times. Then, they write up their findings. Now, This is the "teachable moment" as we are so fond of calling it, the actual educational part of all this. The teacher reveals the intended results of the experiment. Then the students are tasked with reviewing their work, and discovering where mistakes in their procedure where made that caused result B, instead of result A. Perhaps at this stage, the students are tasked with performing the experiment one more time, this time correcting the error, to see how proper procedure results in result A. In a well designed exercise, Both result A and result B in the experiment produce fascinating results, thus investing students interest in science. (A fair amount of classroom science has results where A is interesting, and B is not, which also can spur a desire to learn how to do the process correctly, allowing for the exciting result.)
The point is, to foster an interest in science, while instilling in the student the knowledge and skills required to perform scientific processes with the appropriate rigor and technique. Once this is very well mastered, students move on to designing and executing their own experiments. As we have seen here, there is a great deal of discussion as to the various places proper scientific process was or was not followed in these students experiment. Couple that with the fact that the phenomena they are attempting to study is still in great debate by professional scientists around the world, and you have students set up in a situation where, despite having performed an experiment, they have not really learned anything about how to do science properly.
Comment: Re:Not news in the least (Score 1) 310
The point being, there are plenty of ways to get kids interested in science, that will allow them to do projects, and get results, that are not nearly as prone to producing aberrant results. MY understanding of how to teach kids science is to have them perform KNOWN experiments that the teacher KNOWS the possible outcomes of, because they have been performed thousands of times by well trained scientists. That way, the teacher can actually teach, because they will be able to tell if proper scientific process has been followed, based on the results, and guide the students into learning the proper scientific process.
Having young kids do actual research on subjects that are not well studied already, or with huge variable pools, does not really teach them anything. its just "I did an experiment and something happened! but because I don't know what was supposed to happen, I cant tell if I followed good scientific procedure." Which is really what they need to be learning.
Let me give a real world example I experienced as a student. In one of my electronics courses in college, we used a workbook designed by students of another school. It included lots of problems such as calculating the final resistance of a circuit. Now, in a professionally designed workbook, generally the problems are arranged so that when you finally produce an answer, the answer is in such a format that you can tell you've proceeded through the math correctly. In OUR workbook, the problems where not designed that way, the result being, you would spend twenty minutes hashing out a bunch of numbers, and the end result looked like it was spit out of a random number generator.
While it is true that real world applications of this sort of math would often produce similar results, In an education environment, producing obfuscated results simply confuses the student, You do the math, look at the answer you got, and think to yourself. "well, I hope that's right." Because the answer your derivations produced is in such a obtuse format.
The point is, in a learning environment, working toward a known answer is key to learning the steps in getting their correctly. Once you know how to take those steps, you can move on to taking those steps blindly towards unknown answers. I will concede that yes, there is eventually a time you may ask students to step out and work towards unknown answers, but I personally feel that such levels of education are better suited to college, possibly even masters degree level, simply because there is such a great quantity of knowledge required to properly proceed through the scientific process.
Think about it, Any high school chemistry teacher worth their pay would never ask a student to mix two chemicals together if the teacher did not know what the reaction would produce. The same standard should be held for biological science at that level.