Equipping Today’s Learners for Leadership Tomorrow through Educational Design

Our Mission

We believe that truly transformative learning goes beyond simply delivering information. It requires a deep understanding of how adults learn, how to design engaging online ecosystems, and how to cultivate the skills necessary for individuals to speak up in the public square, deliver a compelling message behind the pulpit, and step into important leadership roles at work.

Upcoming Webinars & Workshops

  • "The Basics of Adult Learning Theory"

    08.26.25 Noon EST

    This webinar is exclusively for members of the Association of Leaders in Lifelong Learning for Ministry. You can learn more about membership in ALLLM by clicking the link below.

  • "Culture Shock: Recognizing the Signs and Navigating the Symptoms"

    09.30.25 Noon EST / 6pm CET

    Whether you are living abroad, traveling internationally, or hosting a group trip overseas, culture shock can present a unique and unexpected set of challenges. In this 90-minute workshop, we will discuss how to recognize the signs and how to navigate the myriad of symptoms associated with culture shock.

  • "Measuring What Matters"

    10.28.25 Noon EST / 6pm CET

    In this webinar, we will discuss how best to assess learning online. We will explore assessment strategies that move use beyond basic quizzes and into measuring what is most important for adult learners.

Executive Consulting

Program Design & Development

Our Services

Advanced Multimedia

Training & Workshops

Online Learning

Immersion Learning

Online Learning: Are you measuring what matters?

Our Strategic Online Learning Assessments provide a comprehensive, evidence-based assessment of your online course assessment and evaluation strategies, ensuring they effectively drive deep learning, meet relevant accreditation standards, and prepare your students for their desired vocations. Assessment reviews generally take 6-8 weeks to complete, include a printable PDF findings report, an optional Zoom presentation to staff and stakeholders, and are based on data collected from Tumbuh's Comprehensive Assessment Matrix (TCAM). Drop us a message to let us know of your interest, and we'll send you an overview of our approach.

  • "Tumbuh's [training] filled gaps and dispelled misconceptions in my understanding of adult learners."

    2024, Pastor, Local Congregation

  • "Dr. AC had excellent communication skills, including listening to our needs and giving the guidance that I was requesting."

    2025, Academic Dean, Graduate Seminary

  • "Our pastors needed this insight more than I knew. It helped them understand their parishoners in a whole new light."

    2024, Regional Executive, Denomination

  • "The live conversation helped me ask better questions because [Tumbuh's] expertise and experience factor helped me manage my own ignorance and mitigate my circular thinking."

    2025, Academic Dean, Theology School

  • "Dr. Lindsay is knowledgeable, professional, and approachable. Her expertise is evident, and she shares it generously and genuinely."

    2025, Educational Technologist, Graduate Seminary

  • "This [training] demythologized the art of online instruction for me."

    2024, Executive Director, Nonprofit

  • "The succinct videos and [teaching] text in the online training were spot on. I felt like I was learning a lot without being overwhelmed or overcomitted to time."

    2024, Executive Director, Nonprofit

Join the Resource Hub - it’s free!

The Tumbuh Resource Hub is a growing set of educational design and adult learning resources for theological schools, churches, denominations, judicatory leaders, nonprofit executives, and government trainers. Click 'Resources' in the menu bar or the button below to join. Hub membership is free - but requires an active email address to maintain access. New resources posted monthly!

Logo of the Association of Theological Schools, also known as the Commission on Accrediting, featuring the letters "ats"

Recent Clients

Logo of the United States Agency for International Development (USAID) featuring a handshake and stars.
National Fair Housing Training Academy logo, featuring a blue and green shield icon with text.
Berkeley Yale logo featuring a crest with red and blue shield and star emblem.
Eden Theological Seminary logo on a green background.
Sankofa CPE Center logo with a stylized bird in a circular design on a red background.
Logo of The Cloudburst Group featuring stylized cloud graphics in blue and gray colors beside the company name.
Logo of Christian Temple with a white chalice and red cross on a colorful mosaic background.
Knox logo featuring shield with cross pattern
Logo with a tree and a path, text says 'Transitional Ministry Pathways'."
United Lutheran Seminary logo featuring a stylized U with a cross and orange accent.
Logo of Wesley Biblical Seminary with geometric flame symbol above text.
Seal of Evangelia University, California, featuring an emblem with "E U" and "Coram Deo" text.
Logo of Chaplaincy Institute of Maine with a spiral design and text "ChIME Chaplaincy Institute of Maine."
Hazelip School of Theology logo, Lipscomb University
Logo of Concordia Theological Seminary in Fort Wayne, Indiana, featuring a stylized church silhouette and text.
Wesley Theological Seminary logo featuring a rider on a horse in purple.
Logo of Garrett-Evangelical Theological Seminary with colorful geometric design and purple lettering.
Faith Matters Network logo in purple with stylized plant graphic above the text.