Charles Hawthorne was the first painter in the history of painting to put the "Impressionist concept of seeing" into a teaching principle. Hawthorne spent the last fifteen years of his life trying to understand what Monet looked for and how he painted.

Henry Hensche, an assistant to Hawthorne, perfected the concept of seeing and teaching color. After Hawthorne's death in 1930. Henry Hensche taught and practiced this visual language of color from that first summer in 1930 until his death in 1992.
(Prof. Sammy Britt - Delta State University)

A landmark achievement in painting instruction, and teaching students to see color relationships, Henry Hensche, preserved the practical and historical legacy of teaching a principle which had been handed down to Henry Hensche - as Hawthorne's assistant.

To illustrate that "seeing" the many light keys of nature can be taught. That it is the next logical step that one must take in a realistic approach to painting if they are to grow in the knowledge of color and plein-air perspective.
(Albert Guidry - The Henry Hensche Foundation)

(LEFT] Hensche visits Toth gallery in Kearny, NJ. (1977)
[RIGHT] Robert Toth painting colored blocks set outdoors in sunlight. Focusing on those simple shapes made it easier to see the way colors are influenced by changes in the time of day (light). A teaching method developed by Henry Hensche.