What is a summary of Chapter 2 in To Sir with Love?

Left by the Headmaster to look over the school on his own,
Mr. Braithwaite walks down the hall and is nearly bowled over by a red-headed girl being
pursued by two others. Seeing two of the students rushing into a classroom, Mr.
Braithwaite goes over, knocks on the door, and walks in. He is stunned by the atmosphere
of disarray in the room; there is no sign of a teacher, and the students, about forty of
them, are standing around in "careless unscholarly attitudes." One of the students says
to him, "If you're looking for Mr. Hackman, he's not here, he's in the staffroom," and
Mr. Braithwaite, taking his cue, retreats to the staffroom, where he meets a
"cadaverous" young man reclining in an easy chair. In answer to his query, the man
informs Mr. Braithwaite that Mr. Hackman has quit, and predicts that he, Mr.
Braithwaite, will be replacing him. He then leaves the room, and soon after, a tall
blonde woman, Mrs. Dale-Evans enters; in a friendly, efficient manner, introduces
herself as the teacher of Domestic Science, and invites him to stay for
dinner.

Mr. Braithwaite explores more of the school
grounds, and finds the environment shabby and unkempt. He wonders how "these East London
children feel about coming to this forbidding-looking place, day after day." Upon
returning to the staffroom for dinner, Mr. Braithwaite meets more of the teachers - Miss
Dawes, Miss Phillips, Theo Weston, the man he had earlier met, Miss Clintridge, the art
and drama teacher, and Miss Blanchard, who has only been at the school for a few days.
The teachers are friendly, although they express doubt that Mr. Braithwaite will remain
at the school, and when the meal is over, everyone leaves except Miss Blanchard. Mr.
Braithwaite asks Miss Blanchard if the children are difficult to manage, and she
tells him that they are, and that to her, they seem "frightfully grown-up and sure of
themselves." Miss Blanchard tells Mr. Braithwaite that at Greenslade, the students "are
encouraged to speak up for themselves," that punishment is not used, and that she often
finds what the children say "rather alarming and
embarrassing."

At this point, Mrs. Dale-Evans, who is on
her way to fix a bath for a child who is so unkempt that her peers will not sit near
her, comes into the staffroom. She invites Mr. Braithwaite to come see the Domestic
Science room where she teaches, and Mr. Braithwaite is impressed to find a well-equipped
classroom with cooking supplies, sewing machines, and washing machines as well. When her
students come in, Mrs. Dale-Evans has them scrub their hands thoroughly, after which
they stand quietly waiting for directions. Mr. Braithwaite is encouraged by "the high
standard of cleanliness and order she (is) able to achieve with the children," and
decides that if she can "accomplish such near perfection without recourse to beatings,"
then he certainly stands a chance of achieving the same thing (Chapter
2).