IB course selection, help please

<p>HL Math is really tough. But if your son has the teacher recommendation, it should be fine.</p>

<p>I see no reason to take 3 sciences junior year. Are the Physics and Chem courses HL (Higher Level - 2 years) or SL (Standard Level - 1 year)? Probably one is SL because typically IB has total of 3 HL, one being English. My point is that Bio can be saved for senior year. </p>

<p>Questions -
What is Geo?<br>
Is the TOK (Theory of Knowledge) all year? Our hs splits it 2nd semester junior year and 1st semester senior year. That’s a real schedule challenge.</p>