Chapter 1: Matilda is introduced as a very smart and clever little girl who loves reading books. However, her parents do not appreciate her intelligence and prefer her to watch TV instead.

Chapter 2: Matilda starts school and meets her teacher, Miss Honey, who is kind and supportive. Matilda quickly realizes that her classmates are not as interested in learning as she is.

Chapter 3: Matilda discovers her special powers of telekinesis, which means she can move things with her mind. She uses this power to play tricks on her family, who are unaware of her abilities.

Chapter 4: Matilda’s parents meet the terrifying headmistress, Miss Trunchbull, who is mean and cruel to the students. Matilda feels sorry for her classmates and wants to help them.

Chapter 5: Matilda befriends Miss Honey and learns about her difficult childhood with Miss Trunchbull as her aunt. Matilda decides to use her powers to stand up against Miss Trunchbull and help Miss Honey.

Chapter 6: Matilda starts using her powers to play pranks on Miss Trunchbull, making her believe that the school is haunted. This gives the students some relief from their strict headmistress and brings them closer together.

Overall, the main ideas from chapters 1-6 of the book Matilda revolve around Matilda’s intelligence, her special powers, her friendship with Miss Honey, and her determination to stand up against the mean headmistress, Miss Trunchbull.