Engage students in active learning with Power Pen ®! Use the Power Pen Math & Reading Comprehension Cards to build skills & reinforce learning. With the easy-to-use Power Pen & Power Pen Learning Cards you simply select an answer & receive immediate feedback with an audio & visual response. The Power Pen sends positive responses to correct answers & encouraging redirection for wrong answers, keeping students motivated & on track. Use the Learning Cards with the interactive Power Pen ® to get instant feedback.Lights up red or green!Pen tip provided instant feedback when touching ovals on Learning Cards!Requires 2 AAA batteries (not included)