The SSC paper is a speed exam in disguise
Here is the fact most students only discover in the exam hall: an SSC Algebra or Geometry paper is forty marks in two hours, and so is Science Part 1. That sounds generous until you see the paper — a block of one-mark objective questions, then two-, three-, four- and five-mark questions, with every step of the working carrying marks.
There is no negative marking, which changes the strategy completely: every blank is a wasted mark, and an attempted answer with correct working scores even when the final number is wrong. Half the marks I recover for students come from teaching them to write the steps they already know instead of leaving the question.
The board sets its paper from the Balbharati textbook. Not from a guide, not from a reference book. So we finish the textbook — every practice set — and then move to board papers.