Khan Academy
Khan Academy: Valid Claims
Practice figuring out whether we took a random sample and whether we're able to draw valid conclusions from our data. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: 4.1: Persuasive Essay
[Free Registration/Login may be required to access all resource tools.] Learn to write a persuasive essay by organizing arguments in a logical order, providing appropriate supporting details, clarifying main arguments, and identifying...