Here's an outline of topics your teacher can cover with you depending on your level of ability.

• 12 bar blues form
• Blues scale
• Turnarounds
• Standard blues riffs/rhythm guitar playing
• Standard blues lead guitar licks
• Use of metronome in practice
• Importance/development of internal sense of time and form
• Pickstyle blues playing
• Study of intervals (singing and playing)
• Major and minor triads
• Theory and voicings
• I, IV, V dominant 7th chords and chord function
• Importance of blues as original American musical form

• Major Scale harmony and chord function (triads and 7th chords)
• Construction of Dom7th chords
• Dom7th as tonic function chord
• Mixolydian mode and Dom7 chords
• Rhythmic styles (shuffle, straight, 12/8, etc.)
• Blues as a musical language (syntax)
• Lyrical construction of 12 bar blues (A,A,B)
• Importance of learning language by emulating (learning) great recorded solos/songs
• Historical origins of blues song structure
• Historical lineage of blues musicians (chronologically: Son House, Robert Johnson, Muddy Waters, Buddy Guy, BB King, Eric Clapton, Jimi Hendrix, Jimi Page, Stevie Ray Vaughn, etc.)
• Historical lineage of blues styles (Delta/acoustic, Chicago, 60s British, contemporary)
• Influence of blues on other guitar styles (Rock [Chuck Berry], Heavy Metal)
• Use of effects in electric blues (earliest uses of distortion, etc.)

• Slide blues playing and open tunings associated with slide playing (Delta blues musicians, Duane Allman, Bonnie Raitt)
• Acoustic (Delta) blues and fingerstyle playing
• Influence of blues singers on instrumentalists
• "Vocal" guitar techniques: string bending, vibrato, trills, slides
• Blues phrasing and melodic statements
• Use/importance of space in blues phrasing
• Narrative quality of great blues guitar solos
• Tonic diminished sound in blues
• "Major against minor" contributing to blues sound/feeling
• Ability to hear/sing along with what is played on the instrument
• Fingerings for triads, 7th chords, 7 note scales, diminished scales
• Chord voicings and inversions (especially Dominant 7th/9th/13th)