SLATE SCIENCE: $1.1 million to NY-based Slate Science in angel round led by undisclosed private investors. The startup aims to develop a series of educational apps designed around teaching math skills through games and playful activities, promising that "no child is left bored or unchallenged." Not a bad chunk of change for a company that currently has one app, SlateMath K1, targeted for kindergarten and first-grade students. More info in press release.