Exhibit 11 WORLD OF SCIENCE, INC. COMPUTATION OF PER SHARE NET LOSS (In thousands, except per share data) QUARTER ENDED ------------- BASIC LOSS PER SHARE: October 31, 1998 November 1, 1997 ---------------- ---------------- Net loss $(1,384) $(1,415) Weighted average common shares outstanding 4,868 5,064 Basic loss per share $ (0.28) $ (0.28) ======= ======= DILUTED LOSS PER SHARE: Net loss $(1,384) $(1,415) Weighted average common shares outstanding 4,868 5,064 Diluted loss per share $ (0.28) $ (0.28) ======= =======