sqlite3 select from multiple tables 'where' stuff

I'm trying to query multiple tables at once. Say I have a table named PRESCHOOLERS and I have another one called FAVORITE_GOOEY_TREATS, with a foreign key column in the PRESCHOOLERS table referencing the id field of FAVORITE GOOEY TREAT. What would I do if I wanted to get a list of preschoolers with their first names alongside their favorite treats. I mean something like:

first_name    |    treat
john          |  fudge
sally         |  ice-cream

Here's what I'm trying, but I've got a syntax error on the where part.

SELECT PRESCHOOLERS.first_name, FAVORITE_GOOEY_TREATS.name as treat
FROM PRESCHOOLERS, FAVORITE_GOOEY_TREATS
WHERE PRESCHOOLERS.favorite_treat = FAVORITE_GOOEY_TREATS.id and 开发者_JAVA技巧PRESCHOOLERS.age>15;

As far as I know this kind of thing is alright by sql standards, but sqlite3 doesn't much like it. Can someone point me at some examples of similar queries that work?

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Try

SELECT PRESCHOOLERS.first_name, FAVORITE_GOOEY_TREATS.name as treat
FROM PRESCHOOLERS
JOIN FAVORITE_GOOEY_TREATS ON PRESCHOOLERS.favorite_treat = FAVORITE_GOOEY_TREATS.id
WHERE PRESCHOOLERS.age > 15;