James Allen (aka Mr. Allen Math) is a high school math teacher in the suburbs of Chicago with 14 years of experience teaching everything from Algebra 1 to Pre-Calculus, ACT/SAT Prep, blended learning courses, and a unique two-period course called Geometry in Construction, where students learn geometry through hands-on building projects that apply math in real-world contexts. A national conference presenter, James shares practical strategies for engagement, real-world application, and instructional support—many of which he features on Instagram, TikTok, and YouTube under the handle @mrallenmath.