This interactive smartboard lesson is a fun way for your students to practice place value and use strategies in a tic-tac-toe game with a Trick or Treat Halloween Theme. Lesson has 12 slides with place value questions ranging in difficulty to naming digits in their place value to comparing numbers to the thousandths. Students choose question according to where they want their tic-tac-toe piece to be. They must first answer the question correctly before they can move their piece onto the tic-tac-toe board. Any question not answered correctly remains in play for the next team to choose if they like. Created with Smart Notebook 14. Great for grades 3-6 depending on the level of the class. All slides are linked for easy play. This can easily be used as a teacher directed mini lesson in place value or as an independent station in a center.