If semiotics is a new disciplin to you then you should start first with some general introduction and only then go to specific semiotics of education / edusemiotics material.
Here are the most important (alternative) course books about semiotics of education (available in the Oulu University Library):
Living and learning as semiotic engagement: a new theory of education / Andrew Stables. Lewiston: Edwin Mellen Press, 2005
Semiotics education experience / Inna Semetsky (ed.). Rotterdam: Sense Publishers, 2010.
Pedagogy and edusemiotics: theoretical challenges/practical opportunities / edited by Inna Semetsky and Andrew Stables. Rotterdam: Sense Publishers, 2014.
Edusemiotics: Semiotic philosophy as educational foundation / Andrew Stables and Inna Semetsky. London: Routledge, 2014. (Available as eBook)
Semiotic theory of learning : new perspectives in the philosophy of education / Stables & others (Available as eBook)!!!
Be(com)ing human: semiosis and the myth of reason / Andrew Stables. Rotterdam: Sense Publishers, 2012.
Lectures:
Prof Andrew Stables' inaugular lecture in Roehampton University.
Eetu Pikkarainen: Lecture about edusemiotics
More material will be in the closed course area in Moodle learning environment.
You can use the materials of the international Semiotics and Education Network site. (See Links & Rescourses > Semiotics and Education )
If you happen to know or find something which you think it should be added here please don't hesitate to inform me: eetu.pikkarainen@oulu.fi