Fourth Quarter at Fairfax High
The week after spring break, students at Fairfax High are still waiting for their third quarter grades but are already rounding the bend into the final lap of their school year. The assignment sheet for the Algebra II class shows the state Standards of Learning test is only a month away! Before then, they need to learn about variation, conics, series and sequences. Oh, and do a whole lot of review.
This morning, many of the teens rested their heads on their arms as they puzzled through new vocabulary and some new ideas during a lesson on variation. Teacher Tricia Colclaser went over the differences between direct variation, or Y= KX problems, versus inverse variation Y= K / X and joint variation or Z = KXY. We looked at different problems and to figure out whether the variables have a direct or inverse relationship. Example: Longer days and shorter nights have an inverse relationship but the brighter sun and the warmer temperature have a direct relationship.
It mostly made sense. And it was fun to play with numbers again. A problem we were asked to solve: z varies directly with x and inversely with y. Write the variation if x=3, y=4, and z = 2.
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