Absolutely! However, keep in mind that PowerPoint, as a program, has been replaced in the elementary school level by the Smart Software, which offers a much more interactive and advanced package with activities quite similar to the ones used with PowerPoint. The Smart software is used with Smartboards, whose use is considered to be a best practice for 21st century teaching and learning. This being said, it basically means that the PowerPoint software is slowly becoming old-fashioned, so to speak. It clearly will be replaced in its entirety in a very near future.
However, if the use of Powerpoint has just been implemented in a school district (which would be a shocking thing to do in times when technology should be way more advanced), then it can be a great help for both teachers and students.
For teachers, PowerPoint provides the best way to enrich and enhance instruction because it is more visual and organized, as well as concrete, than mere teacher-made materials and posters.
PowerPoint presentations made by children encourage them to organize their thoughts and ideas. They can also use the slide layouts to create or format graphic organizers that can help them retain information.
So, there is definitely an advantage in the use of PowerPoint and it is definitely meant to benefit students and teachers alike.