PERC 2013 Abstract Detail Page
|Abstract Title:||Student ability to infer relationships between variables from graphed data.|
|Abstract:||Here initial data is presented from an on-going study to classify student abilities to infer graphed variables' relationships. The information presented here focuses on categorizing where students have difficulty. Understanding why certain presentations and relations are more difficult is a future goal. A small but persistent difference in student ability to read trends in graphs with only two data points in comparison to graphs with five data points has been found. In addition, large differences have been found in student ability to use graphs showing that the variables have no relation, a horizontal line, or an unknown relationship, a vertical line, vs. more standard graphs where the data is showing either a proportional or an inverse relationship. Lastly, there seems to be small differences in student ability to predict hypothetical values of data outside a graphed region compared to their ability to analyze the trend (proportional, inverse, none, or unknown).|
|Abstract Type:||Contributed Poster Presentation
Illinois State Univeristy
218 Willard Ave.
Bloomington, IL 61701