author
Best known for a lively early-1900s guide to teaching geography through raised chalk maps, this educator wrote for teachers who believed learning should be active, visual, and hands-on. Her surviving books suggest a writer deeply interested in art, classroom method, and influential reformers in education.

by Ida Cassa Heffron
Ida Cassa Heffron was an American education writer and art instructor active around the turn of the 20th century. The title page of Lessons in Chalk Modeling: The New Method of Map Drawing identifies her as formerly of the Cook County Normal School in Chicago and as a lecturer and instructor in pedagogics in art in the University Extension Division of the University of Chicago.
That book, first published in 1900, is the work she is most readily associated with today. It presents a practical, hands-on way to teach geography by modeling landforms and maps in chalk, reflecting a classroom style that favored observation and making over rote memorization.
Library records also show that she wrote Francis Wayland Parker: An Interpretive Biography and Will Levington Comfort, Man of Vision, which points to a broader interest in educational thought and biographical writing. Reliable biographical details about her personal life appear to be scarce online, so modern readers mainly know her through the educational books she left behind.