Any items can be used -large demonstration table, blackboard, journal, student made props and anything that students want to provide or use. Uses appropriate strategies to solve problem. Applied statistics are accurate. Exceeds requirements of scientific method. Uses appropriate strategies to solve problem.
Computations are mostly correct.
Written explanations are effective. Inferences are mostly logical and mostly related to hypothesis. Satisfies all requirements of scientific method. May not use appropriate strategies to solve problem Computations are mostly correct. Wriften explanations are satisfactory.