In a course that I need to describe, there are 4 exams with the following schedule:

1/1/2012 Exam 1

1/8/2012 Exam 2

1/15/2012 Exam 3

1/22/2012 Exam 4

To express this, I used

There was a one-week span between each assignment.

However, I am not sure if this sentence expresses the situation well? Any suggestions?

  • Native speakers would be more likely to use gap rather than span in such a context, but that's as much a matter of semantics and intended emphasis as "vocabulary choice". – FumbleFingers Mar 1 '17 at 13:06

You'll be safe saying "four exams are scheduled for this month, with a seven-day interval between each one of them."

  • Or "... every Friday, starting on the first." – Davo Mar 1 '17 at 13:27

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