Performance Expectations:
The NGSS is not a set of daily standards, but a set of expectations for what students should be able to do by the end of instruction (years or grade-bands). So, the performance expectations set the learning goals for students, but do not describe how students get there.
Performance Expectation finder tool website:
http://ngss.nsta.org/performanceSearchResults.aspx
Assessments:
Existing assessments in science education weren’t designed to capture three-dimensional science learning like the kind found in the Next Generation Science Standards. Instead, students achievement in science is often assessed only every few years with tests that mainly measure students memorization of facts and definitions. The performance expectations in the NGSS were written to encourage the development of better assessments, but to develop better assessments, we must explore new approaches.
Building A System of Assessment
Successful teaching and learning requires more than a summative assessment at the end of the year. Educators need a new system of assessments to evaluate how well our students are learning and understanding the NGSS supported science curriculum.
Classroom Assessments
There are many classroom evaluations beyond traditional standardized testing that can determine whether students are successfully learning. Students can demonstrate competency with tasks like
- developing and refining models;
- generating, discussing and analyzing data;
- constructing spoken and written scientific explanations;
- engaging in evidence-based argumentation; and
- reflecting on their own understanding.
Assessment information from the NSTA website: http://ngss.nsta.org/conducting-assessments.aspx