
Description: 
In prior grades students learned to revise questions so they can be answered scientifically. In grades 912 students extend and refine their understanding of the nature of inquiry and their ability to formulate questions, propose hypotheses, and design, conduct, and report on investigations. Refinement includes an increased understanding of the kinds of questions that scientists ask and how the results reflect the research methods and the criteria that scientific arguments are judged by. Increased abilities include competence in using mathematics, a closer connection between studentplanned investigations and existing knowledge, improvements in communication and collaboration, and participation in a community of learners. 



Students are expected to:    Plan and conduct a scientific investigation, choosing a method appropriate to the question being asked.    Collect, analyze, and display data using calculators, computers, or other technical devices when available.*b  Mathematics Connections    *b 8.5.D Represent a problem situation, describe the process used to solve the problem, and verify the reasonableness of the solution. A1.8.A Analyze a problem situation and represent it mathematically. A2.1.A Select and justify functions and equations to model and solve problems. A2.6.F Calculate and interpret measures of variability and standard deviation, and use these measures to describe and compare data sets. A1.8.F Summarize mathematical ideas with precision and efficiency for a given audience and purpose. A1.6.E Describe the correlation of data in scatter plots in terms of strong or weak and positive or negative. 



