Aural skills (also known as ear-training) is a fundamental facet of musicianship. Learning to listen, identify, discern, and understand music without notation present helps develop the inner listening skills needed to become a well-rounded, well-versed musician.

Finding the steady beat
Recognizing strong and weak beats
Discerning meter and tonality
Understanding rhythm and tonal patterns
Recognizing dynamics
Discerning articulation
Feeling interval distances
Understanding cadences
Recognizing chords

Aural skills "help musicians at all levels to become more discerning in they way they play, sing and listen to music" (source). 

We all remember those 8 a.m. aural skills classes in college - sight-reading, singing intervals, singing bass lines, spelling chords. But what kinds of aural skills experiences are we giving our students before college? How can we incorporate aural skill activities in our weekly studio lessons