The results are in: Teachers say that GrammarFlip gets results (read our teacher testimonials), and guess what—it does! A recent data study confirms that approximately 80% of students using GrammarFlip show an average improvement rate of 183% from their baseline pre-test scores to their final post-evaluation assessments. There’s definitely something to be said for learning at one’s own pace with instructional videos and receiving instant feedback through practice exercises and writing activities.