Why does lake reintroduce the teacher to wind-wolf at the beginning of "an indians father plea"

Lake reintroduces his son, Wind Wolf, in order to help the teacher understand why Lake may seem different from the general "white" classroom. The father has raised his son in a traditional native home which means the son has a separate upbringing from the white society around him. Lake also reintroduces his son so the teacher understands how to make Wind-Wolf confortable in the classroom environment (certain mishaps such as the boy wanting to cut his hair tells us that he is attempting to assimilate, even though he does not need to in his father's eyes). 

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