The research emerged from inquiries related with how far is the Knowledge of the teachers of the basic Education stage / higher circle / of the education environmental curricula and with how far their use to such Knowledge throughout their teaching practices. • The research has specified his objectives in three points: - Checking the levels of teachers' knowledge of the environment education curricula (objectives, contents and methodology…) - Identifying the reality of application of Environment Education curricula by teachers. - Determining of the relation between Knowledge levels and application levels.