No credit card required Get Started What Parents Are Saying. . . "We've used Thinkwell for two other courses (College Microeconomics and Precalculus). The curriculum is ideal for students who need to hear a lecture and not only read material (although one daughter prefers to print out the ...
for Teachers for Schools for Working Scholars® for College Credit Log In Sign Up Plans Subjects Courses Test Prep Teach Tutoring How to Find Half-life or Doubling TimePrecalculus Skills Practice Jump to a specific example Speed Normal Instructors Sreeja Muraleedharan View bio ...