How did elementary school students discover the sine, cosine and tangent? by Daniel Wolf-Root We live on a sphere (more or less), my students told me. If that’s the case, then how do we find the distance between two points on a sphere? After many students discovered a method for doing this along the surface of a sphere, Ryan […]
Read More →Search Results for: Geometry
Applying for an Accelerated Core Math Course
Going the Distance with Style and Grace

Students frequently compare ATDP’s Secondary Division to an academic marathon, so I find it wise to ask marathon runners (who are also ATDP instructors) for advice on going the distance. One of the most dedicated marathoners, along with Kelly Mogilefsky, whom we featured in 2010, is our highly respected teacher of accelerated Geometry, Mr. Nakia […]
Read More →Not Frequently Enough Asked Questions
From Paul Heller Secondary Division writing instructor Q: Why would it be useful for me to read the comments teachers write on my child’s papers? I’m not a teacher, so how could I help? A: It is not necessary to be a teacher to help your children think critically about their own work. What is […]
Read More →Predicting Success in ATDP Accelerated Math Courses
Every year, over 150 students enroll in an accelerated mathematics course at ATDP. These courses, which include Algebra I, Geometry, Algebra II, Pre-calculus, and AP Calculus, cover an entire school year’s worth of subject matter over the course of six weeks. This means that what is normally taught in 180 days is instead being taught […]
Read More →Reading Recs: Ages 13 to 18
The comments below are from ATDP members and other readers, or excerpted from an online source. Please check your local and/or and school library before you run out (or go online) to purchase tons of books. ~ Nina Fiction Ender’s Game (series) by Orson Scott Card More than decade or so ago, Professor Frank Worrell, […]
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