Which of the following is an example of an "action research" project for a physical science teacher?
ADeveloping a new series of inquiry-based laboratory activities for the chemistry curriculum.
BAnalyzing state-level assessment data to determine trends in student performance in physics over the past five years.
CSystematically collecting data on student engagement after implementing a new instructional strategy to see if it improves understanding.
DAttending a professional development workshop on integrating technology tools into science instruction.