Just a heads up: You really can teach a child sim a skill they wouldn't normally get (like cooking or handiness) by using a skill book for the "Read to Sleep" interaction - but that apparently cancels out the effects of using a skill-building toy like the toy stove or the block table. I had a child sim master the toy oven, but when she aged up to a teen, she started cooking with the small fraction of a point she'd gotten when her dad read her to sleep instead of the three she should have gotten from the toy! How disappointing.