Review vocabulary and facts featured in Mary Pope Osborne's 10th Magic Tree House book (most of this lesson can be used without the book). Also on abcteach.com: crossword, word search, and word scramble.
"Cowboy Jake is afraid of rattlesnakes. He sees a lot of them on the ranch where he lives. In fact, he sees an average of thirty every year. About how many has he seen in the nine years he has lived on the ranch?"