All students are required to have access to an acoustic piano as regular practice is vital to their development. Keyboards or electric pianos are only acceptable substitutes for the very beginners. As the students acquired a reasonable skill level an acoustic piano is indispensable.
A proper bench, ideally an adjustable one that allows the student to play in a comfortable position at the piano is required for development of proper technique as well as preventing injuries to arms, shoulders, fingers and the back. Younger students may require foot stool for proper leg support.
In addition, since rhythm is a very important aspect of music, a metronome is also required.
Make sure the student at home is provided with a quiet and distraction free environment conducive to regular practices.