Water+Problems

=Resource=

http://realworldmath.org/Real_World_Math/Water_Problems.html

=Summary=

===Using Google Earth, students trace paths from a village to a water source. In performing this activity, students learn to express elevation as integers, analyze data on a chart, and explore other mathematical as well as real world problems. ===

=CCSS Alignment for Grades 6-8=


 * ===**6.SP.2 **: //Understand that a set of data collected to answer a statistical question has a distribution which can be described by its center, spread, and overall shape.// Students compare multiple paths to a water source accounting for differences in distance and elevation thus producing a distribution. ===
 * ===**7.EE.4 **: //Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.// Students use elevation and distance as variables to solve the real-world problem of obtaining potable water. ===
 * ===**8.SP.2 **: //Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.// By creating a scatter plot containing the variables (distance and elevation) for all the traced paths from a village to a water source, students can informally assess which path is both the shortest and has the least change in elevation. ===