Best-In-Class Training Curriculum Development Services

End-to-End Services

We offer a complete full-service production workflow, taking on
any of your employee training curriculum design needs.

Over 25 Years of Diverse Experience

Six Red Marbles brings over 25 years of experience spanning the
full educational spectrum, across traditional, hybrid, & eLearning

Tech-Forward & Innovation-Focused

We partner with leading publishers to develop interactive products
that utilize technology to not only stand out but to engage students
like never before.

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What We Do

Content Development

Learning Experience Design



Project Management

Technology & Innovation


Course Development

  • Needs analysis
  • Program design
  • Course design templates
  • Syllabi & lesson plans
  • Content mapping
  • Writing & editing
  • Subject matter expertise

Content Development

  • Content analysis
  • Scope & sequence development
  • Program & course descriptions
  • Syllabi & lesson plans
  • Research
  • Writing & editing
  • Standards correlations
  • Asset specifications


  • Authoring, correlations, and alignment
  • Leveling for difficulty, complexity, and DOK levels
  • Detailed rationales, rubrics, and exemplars
  • Gap analysis and item banks
  • Personalized and adaptive learning solutions
  • Textbook solutions


"HBG has counted on Six Red Marbles' design and composition services for over 3 decades. We've trusted them with our most valuable book projects and authors. They've developed special workflows and synergy for us that we count on daily. We consider them an important production partner."


"I cannot tell you how much I appreciate the fast work on this project. You’ve exceeded my expectations and helped us get product to our customers for January classes."


“The entire SRM team is outstanding. This project would not have happened without them. I cannot thank them enough.”

Core Knowledge

Across Markets

We provide end-to-end composition, editorial, and project management services to trade, educational, academic, and custom publishers around the world.

Wide Range
of Services

Our services span everything from content assembly to media services to consulting to publishing, ensuring a smooth and cohesive project.

Proven Project Management Services

Keep all of your organization's educational projects running on time and on budget with our experienced, US-based project management team.

Who We Serve

PRE K-12




"Always a Student" - The SRM Difference

We don’t rely on how we did things years ago or even yesterday.

“Always a Student” means that as a company and as a partner we always innovate, evolve, optimize, and—yes—learn.