I hope you can swim.: Hungry Teacher

Take a look at a product from Hungry Teacher's "Water World".
Question: Using a standard piece of 8.5 inch x 11 inch paper, model what the earth would look like. Use different color rectangles to represent the land, freshwater, and saltwater. The rectangles need to be proportionate to their actual real world percentages. 
Your students will like the challenge.
Mathematical Domains: Geometry, Measurement and Data, Numbers and Operations, Ratios and Proportional Relationships, The Number System
Topics: Percents, Ratios, Measurement, Fractions, Decimals, Area, Conversions
Grade Level(s): Sixth, Seventh, Eighth
Duration: Approximately 3 to 5 days
http://http://hungryteacher.com/essential_grid/water-world/
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