When casting on Chromecast, would be nice to have a laser pen feature so I can point to things on my tablet and students can see on the projector, instead of using pen or highlighter.
Matthew Hamilton commented
In the meantime, you can use a mouse. Many tablets allow you to connect a mouse to get a cursor on the screen.
Puntero laser para mostrar a otros detalles del trabajo, similar a goodnote de Apple