Educational services are usually delivered by teachers who explain, tell, demonstrate, supervise and direct self-learning. Instruction is imparted in diverse settings, such as educational institutions, the workplace or the home (through correspondence, television or other means). The lessons can be adapted to the particular needs of the students, for example sign language can replace verbal language for teaching students with hearing impairments. All industries in the sector share this commonality of process, namely, labour inputs of teachers with the requisite subject matter expertise and teaching ability.

The subsector is structured according to the level and type of educational services provided. Elementary and secondary schools, community colleges, Collèges d'enseignement général et professionnel (C.E.G.E.P.s) and universities correspond to a recognized series of formal levels of education designated by diplomas, associate degrees (and equivalent certificates) and degrees. The remaining industry groups are based on the type of instruction or training offered and the levels are not always as formally defined. The establishments are often highly specialized, many offering instruction in a very limited subject matter, for example ski lessons or one specific type of software.

Within the subsector, the level and types of training that are required of the instructors and teachers vary depending on the industry.