[2] She received basic education at home and, during summers, used to teach village children to read and write.

[3] Kuraitytė started dating the Lithuanian philosopher Ramūnas Bytautas [lt] but he became ill with bone tuberculosis.

[2] Kuraitytė-Varnienė first taught educational games at courses for kindergarten teachers established by Honorata Paškauskaitė-Ivanauskienė (wife of Tadas Ivanauskas).

[3] In 1923, while her husband worked in Czechoslovakia on printing the banknotes of the Lithuanian litas,[2] she completed a course on the Dalcroze eurhythmics in Prague.

[7] Upon return to Lithuania, Kuraitytė-Varnienė opened a new kindergarten based on the Montessori principles[2] which grew to include a primary school by 1936.

[2] She published articles in various Lithuanian periodicals, including Vairas, Tautos mokykla,[5] Židinys, Naujoji Romuva, Motina ir vaikas, as well as three brochures in 1938.

[5] In 1936, a new law enacted by the Lithuanian government required kindergarten teachers to have completed specialized education.

[3] Activities of the Montessori Society of Lithuania ceased after the Soviet occupation in 1940, but the kindergarten continued to function until 1944.

[5] At the end of World War II, Kuraitytė-Varnienė retreated from Lithuania to avoid the Soviet re-occupation.

Together with Petrutytė, she opened a kindergarten and a primary school at a displaced person camp in Ravensburg, Germany.

Despite hardships, she continued her educational work – teaching at a Lithuanian school on Saturdays and lecturing to parents on the Montessori method on Sundays.

[3] Once the financial situation stabilized, together with Petrulytė, she opened her own preschool in 1955[2] and reestablished the Lithuanian Montessori Society in 1958.

[5] In 1966, they opened the Varnas Montessori Center in new spacious premises in Chicago that cost $70,000 (equivalent to $657,354 in 2023) to build.

[3] Kuraitytė-Varnienė produced educational video Montessori in the Home which was shown to university professors and psychologists.