An example to understand CHANNEL PATTERN.

Channel patterns and triangle patterns just consist of support and resistance lines.
In a channel pattern, support and resistance lines are "parallel".
For a resistance or support line to be valid or strong there should be at least 3 touchpoints.
In the given chart, there are more than 4 points each that touch the resistance line and support line.

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  You can trade when there are 3 situations:
  Valid candlestick pattern at the resistance or support line.
  Breakout i.e when the price breaks out (up) from the channel pattern.
  Breakdown i.e when the price breaks down from the channel pattern.
  ]
  

In all 3 situations, the volumes should be more than avg 10-day volume.