If you decide that you want to work with children in education in some capacity two of the careers you may look at are teaching or working as a teaching assistant. Both of these choices involve working closely with children in the classroom, helping them to achieve their potential academically and a certain amount of planning and record keeping but the main difference between the two roles is the level of responsibility and accountability that is required.
If you decide that you want to train as a teacher then it is necessary to study to degree level in a chosen subject whereas a teaching assistant should have a good standard of education and possibly a vocational qualification for some roles. A higher-level teaching assistant would generally need to have studied for a level three BTEC in a subject relevant to education.
One of the main differences in these two career paths is the level of pay that each role attracts. A teacher, once qualified earns considerably more than a teaching assistant and has the benefit of better job security and pension benefits however if you want to work in a school but do not want to take on the pressures that many teachers have to deal with perhaps a job as a teaching assistant would be a better choice.