The views of recent graduates of a blended learning programme for specialist teachers of children with learning and behavior difficulties in New Zealand were investigated.Six focus group interviews examined factors that participants considered enabled them to develop programme competencies as well as those that acted as barriers to competency development. Results indicated that a range of factors had acted as barriers to or enablers of competency development. These focused on five overarching themes related to: course content, relevance, clarity and structure; support networks; managing time and stress; pre-requisite knowledge, skills, and experience;and, access to technology. The implications of these factors for the further development of blended learning programmes are identified.Training teachers for working with students with special educational needs and disabilities (SEND) is internationally regarded as an important and challenging endeavour. With many teachers reporting not feeling well prepared for working with children with SEND, the effectiveness of teacher training programmes is an important focus for teacher educators (Smith and Tyler 2011). To this end, studies seeking the views of specialist teachers about the training programmes they have completed have an important role to play in shedding light on how such programmes might be improved (Conderman et al. 2013; Lombardi and Hunka 2001). With teacher educators under pressure to effectively train more teachers of students with SEND as well as to increase quality and lower costs, more emphasis is being placed on utilizing e-learning to achieve these aims (Garrison 2011). E-learning is defined as, " …electronically mediated asynchronous and synchronous communication for the purpose of constructing and confirming knowledge" (Garrison 2011, 2). The two primary forms of e-learning are online learning and blended learning. The study reported in this article aims to contribute knowledge about how training for specialist teachers might be improved by examining factors that could act as enablers of or barriers to competency development within the context of a blended learning programme.Results of various studies suggest that online professional training for specialist teachers can result in successful outcomes. For example, a study of professional development for teachers of students with autistic spectrum disorders found that an online learning programme was effective in helping teachers to improve the knowledge, competencies and skills needed to work with students with ASD and their families (Rakap, Jones, and Emery 2014). In another study, Thompson, Klass, and Fulk (2012) compared the use of face-to-face and online learning in the delivery of an introductory special education course for students enrolled in a large teacher education programme. Instruction was delivered either via predominately face-to-face or mainly online methods. Student satisfaction, achievement and engagement were investigated in both conditions with results suggesting similar outcomes...