The program officially launches each year in September. A lot of EIRs and teachers wait until after the fall orientation session (usually mid-September) is done before they get started. But, it's really never too late to start. Even in you only make it into the classroom ONE time before the end of the year - that's still an opportunity to connect with kids and create some positive STEM experiences! The best way to answer this questions is - ask your teacher! If they can find a period to fit you in, great! Our advise - don't let "perfect" be the enemy of "good" :)