This SMARTboard lesson provides students a chance to practice their basic addition and subtraction facts. With a circus theme, students will move number sentences to the correct answer. All slides are self checking because the sentences will disappear if the correct answer is chosen. If it does not belong with the answer, the sentence will bounce back. Easily used as a teacher directed minilesson, a small group activity, or even an independent center. Great fun way to practice those facts that never change!! Created with Smart Notebook 11.