Tic Tac Toe is a great way to review important vocabulary while helping students make valuable connections between and among terms. In this set students use common terms found in high school geometry. There are 30 term cards in the set. Have students take 9 of the terms, either specific cards based on unit vocabulary, or randomly if later in the year. They place these cards in a Tic Tac Toe arrangement and then choose a row, column, or diagonal of terms. They must create a complete sentence that relates the terms in their chosen line.