experienced -- endured; undergone; suffered through; wise or skillful in a particular field through experience.
impression -- a strong effect produced on the intellect, feelings, conscience, etc.; a notion, remembrance, belief, etc., often of a vague or indistinct nature.
course instructor -- another name for "professor", "teacher", etc.
fundamental -- serving as, or being an essential part of, a foundation or basis; basic; underlying.
preparation --a proceeding, measure, or provision by which one prepares for something.
lecture -- a speech read or delivered before an audience or class, especially for instruction or to set forth some subject.
intelligent -- having good understanding or a high mental capacity; quick to comprehend; having the faculty of reasoning and understanding; possessing intelligence.
keep up with -- to stay informed.
organized -- Informal. to put (oneself) in a state of mental competence to perform a task; to systematize.
disturb -- to interfere with; interrupt; hinder.
classmates -- a member of the same class at a school or college.
participate -- to take or have a part or share, as with others; partake; share.
actively -- engaged in action; characterized by energetic work, participation, etc.; busy.
jump at the chance -- to accept an opportunity eagerly.
appropriate -- suitable or fitting for a particular purpose, person, occasion, etc.; proper.
belongings -- possessions; goods; personal effects.
confusion -- lack of clearness or distinctness; perplexity; bewilderment.
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