The app "working car Rattle" is an educational app that lets you operate a variety of construction vehicles such as a dump truck, a bulldozer, a power loader, a tractor, a working shovel, and a working mixer. It is designed to help children learn the basics of driving a construction vehicle and the different types of machines used in the construction industry. The app includes a tutorial that teaches them how to operate each vehicle. The app also includes a series of games that help children learn the basics of driving a construction vehicle. In the games, they will need to use the different types of machines to clear the construction site of various obstacles. The children will be able to use the bulldozer to remove the trash and debris from the site, the shovel to remove the dirt and sand from the site, the tractor to move the rocks and dirt, the power loader to load the trucks with rocks, and the mixer to mix the cement.