Wednesday, November 18, 2015

Bar Graph

Yes, we are still proceeding at a  glacial pace in my science class.  I thought you might like ideas for creating bar graphs.  Today, we completed three labsMuscle FatigueReaction Times, and Hot Hand.  The kids had finished the muscle lab two weeks ago when we last met.  I summarized their data on the board.  Creating bar graphs and averaging the data took an hour. I had the older kids copy the summarized data and take averages while the younger kids did some copy work.  Everyone created bar graphs.  I helped the kids set up axes, count by fives, and plot the data.  The kids plotted everyone's data and then we dicsussed briefly what the graph represents.  I wanted the class to get an idea that the graph summarizes the data they collected. This process took an hour.  Next the kids each did ten trials with rulers to collect reaction times.  Once again, I had the class average and graph the class data.  For the third lab, the kids took temperature measures for their fingers, palms, wrists, elbows, and under arms with the digital thermometers using Sparkvue and Vernier equipment.  The kids summarized an average for each body part in one bar graph from their data.  By the third time, the kids were setting up axes and graphing with aplomb.  They also have a good grasp of experimental design.  Everyone can create a bar graph!

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