Grade 12 Maintaining Water Systems Task: 40 Minutes

TWELFTH-GRADERS CAN DO DETAILED EXPERIMENTS BUT ARE CHALLENGED TO EXPLAIN THEIR REASONING   

For this task, grade 12 students were asked to investigate the best site for building a new town based on the quality of a given water supply. Using the provided laboratory equipment and materials, students had to test water samples for levels of specific pollutants and evaluate water treatment processes.

• See how selected student groups performed on the five steps of this task.
• See test administration and scoring materials for this hands-on task.

 

SEE NON-FLASH VERSION

 

SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Science Assessment.