By measuring student growth, using the pre-assessments and post-assessments from each unit, it was evident that the students experienced more growth in the unit taught with constructivist methods as compared to that taught with traditionalist methods. However, only with the sixth grade students‘ growth scores was there a statistical significant difference (p < .05) between the mean scores for the two instructional methods (seventh grade, p > .05) when running a dependent t-test. The growth was significantly larger with the sixth grade students than with the seventh grade students. The sixth grade students experienced almost 20% more growth in the inquiry-based unit compared to the traditional unit. This difference could have been impacted by the various types of content taught within the different units. Further research could be done to determine if the type of content effects student academic growth when using a variety of instructional methods.