What is TPR and why do you think it benefits foreign language students?
TPR stands for "total physical response." The theory behind it is that students memorize vocabulary/phrases more easily because they are associated with a movement. For example - "Abran sus libros" (Open your books). As the teacher gives this command, she makes a gesture with her hands (imitating someone opening a book), and both the phrase (and the gesture) stick with the students. It's an interesting approach to reinforcing phrases in foreign language, one that is successful because it draws upon all types of learning (visual, auditory, tactical).
Why is the phrase "just between you and I" grammatically incorrect?
The pronoun "I" is a subject pronoun. Example: I went to the store. "Me" is an object pronoun - a pronoun that is the object of a prepositional phrase, for example. That's what we have above: a prepositional phrase. Thus, "just between you and me" is grammatically correct, because "between" is a preposition and requires an object pronoun after it.
What are words that look alike and mean the same thing in Spanish and English?
Those are called cognates (cognados). These are words that not only look similar, but have the same meaning. A super easy one is "chocolate." Yep, exactly the same in both English and Spanish! However, beware of false cognates (cognados falsos) - words that look similar but do NOT have the same meaning. "Embarazada" is one - you would think it means "embarrassed," but it actually means "pregnant"!