Building a good telescope from scratch requires patience, but one company now provides inexpensive, quality kits that can be assembled during the day and out under the stars that night. May I suggest you follow a few simple steps to acquire telescopes for the youngsters in your community. Most telescopes sold in these types of places are poor quality telescopes that will quickly fall apart and work poorly. Decide which telescopes are best for your students and community. There is no ONE telescope that is perfect for every person and task.
Every telescope has advantages and disadvantages.
Read the telescope ads. And don't worry about immediately trying to understand all the complex astrobabble. Remember, you are looking for a telescope that students can use easily, that is portable, durable, inexpensive, etc. Find people who have telescopes in your area. Look for a local astronomy club.