Printable PDF notes for in class instruction and 2 different PDF versions of teacher slideshows for each set of notes. These skeleton notes have matching teacher slideshows to either fill in the blank with the students or move to the next slide to have it auto filled with worked out examples.The skeleton notes cover an introduction to matrices and how to add and subtract matrices. Vocabulary covered: Elements, dimensions, scalars, scalar multiplication, square matrix, identity matrix, and zero m