Good job! Homework #2 Done!
About calling 3bets. When should you actually call a 3bet?
Easiest answer for this is if you expect the opponent to 3bet with worse holdings. For example if you hold KQ and you expect him to 3bet with hands like K9 or whatsoever. Since if you 4bet he is just going to fold those.
Totally agree with you about the stealing ranges. They can be very easily be balanced with even wider range. Depending on the opponent you can as well put a wider stealing range. Against some tight opponents who give up their blinds either preflop or postflop, why not to adjust? Against some shorties you can even steal with smaller raise, for example 3xBB. But don't overdo the stealing situations. Sometimes you might just put yourself into too many difficult spots if opening with marginal hands.
Isolating can be very profitable actually since people on lower stakes take the fast and easy line by just Fit/Folding too much. With that you will earn in long run a lot profit. Which means you can isolate with even wider range, sometimes even with the all range which you planned to limp.
-Why does the SHC tells you to call with a low pair when you are SB and all players folded before you, but you should raise from CO and BU?
Well, the reason is mostly that you gonna play your hand OOP and it's not that easy to play with them. But obviously the chart isn't MUST FOLLOW chart, you can always adjust to yourself according how good you are and how well you feel playing those hands. I'd also rather raise with them.
-When do you en when do you not play suited connectors/facecards to isolate?
Well, didn't get the question that perfectly. But I guess you asking either to isolate with those hands and when not. Usually I wouldn't isolate when you are against a small-stack. Then rather just play passively.
-Up from wich stakes do you start openraising 3bb instead of 4bb from CO en BU?
Well, you can start from whichever stake you want and when you are comfortable with it. It's not something you have to do always. But usually on NL2-NL10 I'd advice to use just basic strategy with 4xBB.
-How do you play a table like this preflop? Short stacks were from maniacsvpip/pfr 39/28 en 36/25) to rocks and one of the big stacks played 34/9. Not to many hands but this was enough for me to leave the table
Well, really hard to describe the whole game theory here.
Since it would take longlong time to do that. Few articles maybe even. Easy answer, I'd just play my standard play and try not to Call down those small loose stacks and isolate very light.
About Question #3:
Equity Win Tie
UTG 46.32% 37.92% 8.41% { AKo }
UTG+1 53.68% 45.27% 8.41% { 88+, AJs+, KQs, AKo }
Hopefully you enjoy the School so far. Some more points earned.