Everything depends on what timeframe did you choose for trading as your work timeframe, you know. Some beginners pick M1-M5 as their work timeframe and they choose short-time trading. Guess that it's propriate to check a couple of timeframes which are a bit higher than you work one. For example if you choose for trading M1-M5 then you have to check at least H1-H4 or maybe even D1 in case you want to determine th trend line and foresee, for instance, trend reversal or something like that. Remember that which trend do you see on the H1-H4, then the same trend will be at your work timeframe. Keep going.