Welcome to the MS Computer Lab Blog!
The objective of our blog is to share information about how we integrate our technology curriculum into the subject area curriculum. The foundation of this effort is the methodology of team teaching the lessons with the Middle School subject area teachers. Each post describes a particular lesson, the software used, some of the skills that were targeted, and the number of days that were spent in the lab.
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Friday, March 6, 2009
Trigonometric Ratios and Geometer's Sketchpad
The 8th grade Geometry students constructed an angle, CAB, and a line perpendicular to ray AB. Then they compared the ratios of certain line segments of the figure. They created a table in which they recorded the changes in the lengths of the line segments, every time they moved a certain point, D, up and down the perpendicular. Later they moved point C, which changed the measure of angle CAB. Later, the students moved point D again, and recorded the changes in a table. They also observed what happened to the different ratios, and from these observations, they wrote conjectures about the ratios.
