In the video, a person is holding a smartphone and using an app to solve math problems. The app displays a series of equations, and the person taps on them to solve them. The equations are written in black text on a white background, and the person's finger is visible as they tap on the screen. The app seems to be designed to help students with math problems, as it provides step-by-step instructions for solving the equations. The person appears to be using the app to practice solving math problems, as they tap on each equation to solve it. The video does not show any other objects or people, and the focus is solely on the smartphone and the app.