Sighting and Angle of Elevation

In seventh grade Algebra, the students used Slope-o-meter to measure the slopes of inaccessible objects with a method called sighting.

To find the slope of the roof of the building next door to Saklan, the students held out their Slope-o-meter and lined up the bottom edge with the slope of the roof. Then they sketched the slope and recorded their measurement. Thank you for another fun lesson Mr. Zippin!