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