Final answer:
The question seemingly mixes historical subjects; while cherry trees are mentioned, they are not central to Helen Keller's education or lessons. Instead, Keller learned many subjects aided by her teacher, Anne Sullivan. References to cherries and the National Cherry Blossom Festival relate more to cultural history than to Keller specifically.
Step-by-step explanation:
The question appears to reference Helen Keller and her experiences, which may relate to historical discussions about her life and the advances she made despite her challenges. While there is mention of a cherry tree, which could relate to the National Cherry Blossom Festival, the connection between Keller's lessons and cherry trees is not historically significant. Instead, Helen Keller learned a variety of subjects - such as reading, writing, and communication skills - through the help of her teacher, Anne Sullivan. The excerpt regarding cherries from Ford's work about Reminiscence Theatre and the National Cherry Blossom Festival, as well as the quote referencing cherries, does not directly inform us about Keller's education. However, these references celebrate the history and significance of cherry blossoms in Washington D.C.