I must admit I derive some amusement from the fact that a fair amount of the initial research I conduct for my college assignments comes from the 1942 version of Encyclopaedia Britannica. Indeed, I am currently citing a 1903 reference quoted in the 1942 volumes.
It should please all of you someday-to-be parents that your children's teacher will be fully up to date on modern theory and methods!
Well, unless your kid ends up in my class, obviously!
(Hey, did you know that "Day Care" used to be called "Baby Farming!" How cool is that!)