Here's the descriptions from wikipedia:
"Coding — children under 8 mark rows of shapes with different lines according to a code, children over 8 transcribe a digit-symbol code. The task is time-limited with bonuses for speed."
"Symbol Search — children are given rows of symbols and target symbols, and asked to mark whether or not the target symbols appear in each row."
I think symbol search is maybe more like a super long kindergarten level matching worksheet than like a where's waldo. I think no one finishes it, that way they spread apart the levels of speed.
