Mystery Liquids
Linear Functions
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Objective
Students will collect mass and volume data for two mystery liquids, create
scatterplots and graphs, calculate linear models, and interpret their results.
Overview of the Lesson
The Mystery Liquids lesson is a data analysis lab in which students gather mass and
volume data for two mystery liquids, oil and water, and then use the data to explore
linear functions. Connections to science are an important part of this algebra lesson,
which deals with density. Active learning and communication are aspects of the
lesson that are modeled for teachers. Students discuss the physical meaning of the
slopes and y-intercepts of the various lines they have created from their scatterplots.
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