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I’m Kathleen Jasper, educator, author, and founder of Kathleen Jasper LLC. I create high-quality professional development and certification exam resources for teachers and aspiring school leaders.
My work is shaped by my own path through public education. I began as a substitute teacher and had to navigate the complex certification exams you are probably experiencing now. I became a certified classroom teacher in high school English and biology, and obtained my reading endorsement. A few years later, I had the opportunity to work in curriculum and instruction, where I designed curriculum, professional development, and assessments at the district level. I earned my doctorate in educational leadership and served as a high school assistant principal for several years. I left public education in 2015 to start my own company.
For more than a decade, I’ve focused on helping educators navigate certification exams by breaking complex frameworks into clear, manageable pieces and teaching candidates how to think like a test maker. While my resources are designed to help educators pass their exams, my larger goal is to support strong instruction, thoughtful leadership, and better student outcomes.
I love writing study guides, teaching courses, hosting webinars, and connecting with educators through professional development and online learning. Teachers and school leaders continually shape my work, and I learn just as much from them as they do from me.
I’m so glad you’re here,
Kathleen Jasper, Ed.D.
Master the Praxis Core — Free Webinar (Reading, Writing & Math)
Get exam-ready for the Praxis Core (5752 or subtests 5713, 5723, 5733) with a focused walkthrough of what the test really measures: critical reading of passages and data, grammar & usage, argumentative/ informative writing, arithmetic & algebra foundations, word problems, and data analysis. We’ll show you how to manage time, use the on-screen calculator wisely, spot trap answers, and apply proven structures for the Writing essay. Leave with targeted study moves, quick-reference strategies, and a clear plan to turn your everyday skills into points—without cramming.

I have lots of free webinars, study guides, and practice test for the Praxis and SLLA exams.
Check out all my free webinars on this page.

I'm Kathleen Jasper, and for the last 8 years, I've helped over 80,000 prospective teachers and school leaders pass their certification exams and get the positions they want in education.
I started off as a substitute teacher, went through the certification process, and was hired as a high school reading and biology teacher. A couple years later, I had the opportunity to work in curriculum at the district office. Finally, I became a high school assistant principal.
I left public education in 2015 to start my own company and help educators navigate the complex process of certification. I've learned a lot working in the testing industry over the last 8 years, and I look forward to sharing that knowledge with you.
I'm so glad you're here,
Kathleen Jasper, Ed.D.