how to teach interrogative and relative pronoun to grade 1 students

There are all kinds of suggestions at these sites:

http://www.google.com/#hl=en&&sa=X&ei=HqSxTLvALcKB8gam69ShCQ&sqi=2&ved=0CBIQvwUoAQ&q=teaching+interrogative&spell=1&fp=102cd7f3589c676f