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Teacher Development Interactive (TDI) is being upgraded. After December 31, 2014 the version you are currently using will no longer be available.
Please make sure you have finished your course by Dec 31, 2014. All teachers and students will need to begin working on the upgraded version that will be available starting in November 2014.

Stay tuned for updates!

Teacher Development Interactive
leads to a First TEFL Certificate from Hunter College, City University of New York!

New!  The Teacher Development Interactive Diagnostic Test provides a quick, easy, and accurate way to place learners within the appropriate modules. It provides feedback that helps teachers determine which areas are their strongest and weakest, and aids them in tailoring a study plan that suits their needs. Click here to get started.

New! Efficacy Study:
"Evaluating the Effectiveness of Teacher Development Online"

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