This resource focuses on the concept of inverse functions tailored for Grade 5 students, introducing them to early algebra through engaging activities. It includes an exploration of the idea of reversibility in everyday actions, such as the 'undo' function in mathematics. Students learn to define inverse functions by swapping inputs and outputs through practical examples. The resource guides students step-by-step in finding the inverse of functions, emphasizing the importance of verification through composition. Additional interactive elements, such as polling and discussions, are designed to enhance understanding and engage students actively in the learning process. Lastly, an exit ticket task challenges students to apply what they've learned by finding and verifying the inverse of a given function, thereby demonstrating their conceptual mastery.