Based on the student's ability to create--not memorize by rote--the Madrigal method can help readers convert English into French in an instant, develop perfect pronunciation (thanks to a handy pronunciation guide), form sentences from the very first lesson, and more
From Wikipedia: Margarita Madrigal (May 15, 1912 – July 23, 1983) was a Costa Rican American author and language teacher best known for the Madrigal's Magic Key to... and An Invitation to... series. During her career, she wrote 25 books covering seven languages.[1][2]
Biography Background Margarita Madrigal's parents met in Kansas City while her father, Ezequías Madrigal (an operatic baritone from Costa Rica) was on tour in the United States. Before he was set to perform, his accompanist became ill. When he heard that a local girl, Carolyn Wilhelm of Winchester, Kansas, was an excellent concert pianist, he communicated to her to perform with him for the evening. She initially refused, but agreed after being asked in person. "The romance went on from there," as Margarita related in an interview.[3]