Viola, violin, cello, and string bass clef projector slides or posters for the beginner strings classroom. Reference poster with alto, treble and bass clef to brighten up your class room. They can be printed as posters or used as a projector slide.I use these slides/posters to introduce the clef symbols to my beginners in 5th grade strings. After that, I use them in my classroom as a reference poster. When a student is struggling to read notes, I can use them to help reach teach, or I send them