17:31, Mon, May 23, 2016 Updated: 17:58, Mon, May 23, 2016 But while most of us rely on a good old textbook for the answer, one particularly Maths revision book has left more than a few minds puzzled.

If a student’s transcript shows the successful completion of Algebra 2, what does that really mean? Although a lot more students today are completing the course, a new analysis suggests that line on ...