When I was an elementary school child, a teacher didn’t frequent…

When I was an elementary school child, a teacher didn’t frequently use educational equipment. Classes that used educational equipment stimulated me. It made me excited and seemed to increase concentration though I didn't know why. It was hard to repeat the teacher's talk because the teacher was not native speaker. But since I use the computer to listen and repeat, I could acquire and correct my errors easily. Pictures and videos were my favorite things. Teachers showed pictures or videos for us on the monitor so that I was motivated on today’s instructional objectives. (중략) Teachers can only teach fundamental parts. But if they use a beam projector to display parts of the textbooks on the blackboard, students can easily write and understand the material because teachers can provide additional context and stress signals. In the case of a celebrity or great man in textbooks, students can widen common sense for searching immediately. If it is related to their interest, it will probably be an effective class. Like this, using educational equipment in learning English contributes to improving the school achievement of students. Furthermore, if technology continues to develop and is applied to education, students will not necessarily need to go abroad. (후략) --------------------------------------------------------------------------------------------------- 첨삭 부탁해. 첨삭한 것 중에서 문법 내용도 같이 설명해줘.