Ed. Leadership & Instructional Media

STEM/STEAM - Technology Integration

Personalized Learning

Please Read

Even though a donation is not required for full access to the unlocked portion of the Tiphour TIPLAB*, donations are appreciated. A tremendous amount of time and personal effort that has gone into designing, creating, and refining this program (20 plus years), maintaining it, and hosting this site (Timeline). If you find value in this program please consider making a donation.


Thank You

R. W. Lehmann MAED, M.ED

*Full access can change at any time.

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