Description In the activity, The Right Ratio of Rest, students will collect and record data in a sleep journal about their sleeping habits for 5–7 days. They will analyze their data by using math skills to convert between fractions, decimals, and percentages and will create graphs and fraction wheels that correspond to their data. They will use proportional reasoning to determine amounts of sleep time that people need in space, given the different lengths of light-dark cycles for various planets.

Instructional Objectives

The student will

• collect and record data about sleep habits.
• calculate the length of sleep periods.
• calculate the mean average of a data set.
• convert fractions to decimals and percents.
• create graphic representations of data, including line graphs, bar graphs, histograms, and fraction wheels.
• use proportional reasoning to find an unknown quantity.
• identify the importance of sleep.
• draw conclusions from a given set of data.
• make predictions about the outcome of an event.
• check solutions and revise anticipated outcomes.
• conduct research.
• communicate solutions effectively, both orally and written.

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