As discussed earlier, instructions are basically non-existent. Many of the screens are straightforward and do not require specific directions. Specific instructions are available in the User's Guide. Teachers would want to consult this guide before using the program with their students. The lack of help for incorrect answers was also a problem with this program.
Students can give an indefinite number of incorrect responses without receiving any additional help.
The program is also very picky about the answers it accepts as correct. If you do not capitalize the first word of a sentence, it will count your answer as incorrect. In some exercises, if you do not put an article in your response, it will counted as wrong. As a native English speaker, I had trouble finding correct responses to some exercises. Teachers will want to stay close by when students are using this program, to assist when problems occur.