Effort Estimation for Beginners: Split the Work, Give 3 Day Counts, Agree on a Buffered Estimate

This effort estimation template for beginners walks a first-time estimator through splitting work, giving three day counts, adding a buffer and agreeing on the number. The whiteboard has 4 pages - page 1 aligns scope, assumptions and the work branches; page 2 tables best, likely and worst days with the expected value; page 3 sorts wide-range tasks, compares past results and places the buffer; page 4 sets the order to present, owners and review days. The task board has four columns - before estimating, working out days, checking the spread, agreed with requester - with 4 parent tasks and 3 subtasks each. Expected = (best + likely x 4 + worst) / 6, and the boards carry worked examples, so you only swap in your numbers. Share it with a limited-visibility team so the person doing the work gives the days and can explain them.