Ada Goldberg Leff, formerly of Colchester, Conn., died on Dec. 30 in Los Angeles, Calif., where she has lived for the last 60 years. Ms. Leff was born in Colchester on July 16, 1923, the daughter of Daniel (Zadel) and Rose Goldberg. She graduated from Bacon Academy and the University of Connecticut, and then earned her Ed.D. from Teachers College at Columbia University. She taught home economics and child development at the University of Connecticut and the University of Rhode Island, and New London Technical High School. She married Ernest Leff, also of Colchester, in 1954. They had a daughter, Laurel, in 1957 and a son, Andrew, in 1959. The family lived in Westport, Conn., until moving to Beverly Hills, Calif. in 1963. They returned to Connecticut every summer, staying at the family cottage on Amston Lake. Ms. Leff had her bat mitzvah at Ahavath Achim in Colchester in 2014 at the age of 91. Ms. Leff is survived by her daughter, Laurel Leff and son-in-law Jeremy Paul (Newton, Mass.), son Andrew Leff and daughter-in-law Shellie Elkind-Leff (Calabasas, Calif.), and her grandchildren Jason Paul, Russell Paul and his fiancé Leslie Diaz, Rebecca Leff and Jennifer Leff. She is also survived by her sister-in-law Marilyn Goldberg, her brother-in-law Sanford Leff, and many nieces and nephews to whom she was devoted. Ms. Leff was predeceased by her husband, Ernest, and her brothers, Bernard, Harold and Nathan Goldberg, and her sisters, Thelma Magun and Belle Rosenblum. The burial will be private due to Covid restrictions.