How do you know when the price has really broken resistance, and isn't just making a quick leap above it only to go down seconds later? What is the best way to calculate the support and resistance? Thank you!

what do you mean? the price goes through the calculated resistance price.

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Forex - Investing for Dummies - Beginner Investing

Here's a good lesson from babypips about support and resistance.

http://www.babypips.com/school/suppo...esistance.html

Hope that helps!