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Who is DMTI

Developing Mathematical Thinking Institute (DMTI) was founded out of a passion to help every teacher, parent, student, and administrator engage in successful math experiences.


Our team is made up of veteran educators who have taught at all levels and enjoy providing support both in and out of the classroom. We know that math can be rewarding and fun for all involved!

Jonathan Brendefur working with students

Our work as educators is driven by the belief that we support the implementation of math instruction that brings life-changing results. Our foundational statement is “Math Success. Life Success.” We want to support that success through our partnerships.

Our team has developed English and Spanish digital and print curricular resources, primary and intermediate diagnostics (including targeted activities), apps, a parent portal (with resources), and more. DMTI partners with you to provide effective, engaging math resources and professional development.

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Our team

The Developing Mathematical Thinking Institute (DMTI)

Sam Avatar
Sam Strother
Director of Professional Development
Jackie Avatar
Jackie Ismail, PhD
Mathematics Instruction Specialist
Keith Avatar
Keith Krone
Mathematics Instruction Specialist
Jana Avatar
Jana Estes
Mathematics Instruction Specialist