Yes, from the perspective of pedagogy, most of the third grade teaching is concrete logical thinking. In the fourth grade, some abstract logical thinking will be added, but it is not as difficult as you think. Moreover, the presentation of this abstract logical thinking is mostly in mathematics, and other disciplines have changed. From the perspective of pedagogy, most of the third grade teaching is concrete logical thinking. In the fourth grade, some abstract logical thinking will be added, but it is not what you think. As long as you learn slowly with the teacher's rhythm, you can expand more extracurricular reading materials if you are interested. It's not bad to learn abstract thinking, but it's not good to exercise. As long as you learn slowly with the teacher's rhythm, you can expand more extracurricular reading materials if you are interested. It is also good to learn abstract logical thinking, but exercise your ability.