Ineed an introduction for a katherine johnson introduction has to be 1 paragraph 4-5 sentence

Start with creating a plan or map. 
Like this.
Introduction~ Can start with a who is this person is and 
Who is this person~
About this person~
What did this person do to make them so special~
Conclusion~ In conclusion, (first sentence from who is this person)(First sentence from about this person)(and first sentence from what did this person do to make them so special) 

Also in the conclusion section it does not have to be the first sentence from the sections of the map it can be a very important sentence in that section.

Hope this helps cause it helps me and I get 10 points out of 10 from doing the map trick. And ask me for anymore help if in need.