The In-School Support component is a very popular aspect of TPDL. The In-School Support Facilitators are so named because of the nature of their work; the name ‘support facilitator’ also reflects the personalities of these professional teacher educators. When the ISSF visit, they use scaffolded observation criteria and structured observation and reflection tools that enable teachers to see the extent to which their classroom practice supports effective language learning. With the support of the ISSF, teachers can assess their own professional development based on evidence of their students' use of the language. The team of facilitators has a great deal of combined experience in teaching and learning of the ten languages of TPDL.