How do I fix my code to stop receiving output: typeerror: unbound method s() must be called with turtle instance as first argument (got int instance instead) in my code?

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Python2.4

I'm learning Python for a class and the assignment requires me to draw something in Turtle Graphics. I decided on what I was going to make but kept getting this error on the line where I put turtle.right(30).

This is how my code looks so far:

import turtle

terry = turtle.Turtle
terry.size = (15)

def drawPoint( length ):
	terry.forward( length )
	terry.left(60)

def resetPosition( length ):
	terry.penup()
	setpos(0, length )
	terry.pendown()

def main():
	length = input("How large do you want the Star of David to be?")
	firstHalf = input("What color do you want half of the Star to be?")
	secondHalf = input("What color do you want the other half to be?")
	terry.color = firstHalf
	terry.right(30)
	beginFill()
	drawPoint( length )
	drawPoint( length )
	drawPoint( length )
	endFill()
main()

What I have tried:

I tried rearranging and reformatting the code, double checked the indentation, tried defining a variable to be the angle.