Advice for a student transitioning from IGCSE to IB curriculum?

I have one last IGCSE exam.

And I'm thrilled to start on a new page to begin studying for IB. Is there any heads up I need to know like gap because I've heard from seniors... its big? I know I should know this by now but how does it differ from studying for IGCSEs or middle school finals?

I also don't really understand abbreviations such as "TOK", "EE" and "IA".
What is generally done in IA's the only thing I've heard is that we apply to Universities with these grades which I'm petrified about.

And a separate question what are some useful websites i could rely on for notes and learning for the following subjects below:

Physics HL
Chemistry HL
English Language and Literature HL

Math AA SL
Philosophy SL
French B SL

PS I'm really struggling to find websites for French, Philosophy and English
Is savemyexams good for physics and chemistry?
Is mrmacmaths reliable for Math??

Reply 1

thomas jefferson

TOK is just a class that is basically philosophy and psychology; EE is just an essay that is 4,000 words; and IA is just another assessment. I don't use any study websites, but I do believe you may be perhaps overthinking. Also, good luck with those HL subjects