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1. 

   Charles John

   https://stemedhub.org/members/17561

2. Grade 5 Water Filtration Lesson

   out of 5 stars 

   19 Sep 2011 | | Contributor(s):: Dana Nicole Ruggiero

   Lessons from: Wea Ridge and Sunnyside

3. Grade 6 Water Filter Lesson

   out of 5 stars 

   19 Sep 2011 | | Contributor(s):: Dana Nicole Ruggiero

   Lessons from:Riverside and Sunnyside