To further prepare students for standardized testing, could Khan Academy include the following tools:

- a summary of each skill, including essential information such as formulas, tips and shortcuts, and various types of questions that correspond with that skill. The videos only provide examples, which are too specific to cover the entire skill. 

- answer elimination and annotation. The practice tests would simulate the official better if we can plan our answer choices on the screen by crossing out incorrect responses, labeling the questions by difficulty, rewriting the question in our own words, et cetera.    

and 

- a preview screen on the last page of the practice test. In our physical test booklets on test day, we can see which answers we have not answered or questions we want to review. Again, it would help to have some visual guide to aid our test taking. 

Thank you for your time, 

L.