Cell Size
My investigation question was "If we could measure cells, would they all be the same size?" The students used Image J to gather data and Excel to record and chart their data. All of the activities were modeled first using the overhead computer screen. The students worked in groups of 2-3 on laptops or desktops.I began the activity using the picture of Mona Lisa.
They learned how to use Image J and measured her smile and eye size. We proceeded to three pictures of different types and sizes of cells. The students measured the length, width, and area using Image J. They recorded their data on a worksheet. They then recorded their data in Excel and used the chart wizard to make a graph.
Four classes (87 students) completed the activity.
It went well but took three classes to complete. I am hoping when I use Image J again, the students will be proficient with the tool and focus on the content of the lesson.
The students were engaged. I was extremely satisfied with the motivation.
The questions were varied. Many had problems opening the files and switching from one to the other. Some students were much more needy than others.
The students saw the dramatic range of size of cells in Excel.
They became fairly proficient with Image J. They are not proficient with Excel.
Next year, I will try to teach my students to use Image J in the beginning of the year. I will use the cell size lesson when we are working with the microscopes and studying cells.
I do not have work to share at this time.
My investigation question was "If we could measure cells, would they all be the same size?" The students used Image J to gather data and Excel to record and chart their data. All of the activities were modeled first using the overhead computer screen. The students worked in groups of 2-3 on laptops or desktops.I began the activity using the picture of Mona Lisa.
They learned how to use Image J and measured her smile and eye size. We proceeded to three pictures of different types and sizes of cells. The students measured the length, width, and area using Image J. They recorded their data on a worksheet. They then recorded their data in Excel and used the chart wizard to make a graph.
Four classes (87 students) completed the activity.
It went well but took three classes to complete. I am hoping when I use Image J again, the students will be proficient with the tool and focus on the content of the lesson.
The students were engaged. I was extremely satisfied with the motivation.
The questions were varied. Many had problems opening the files and switching from one to the other. Some students were much more needy than others.
The students saw the dramatic range of size of cells in Excel.
They became fairly proficient with Image J. They are not proficient with Excel.
Next year, I will try to teach my students to use Image J in the beginning of the year. I will use the cell size lesson when we are working with the microscopes and studying cells.
I do not have work to share at this time.
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