Good luck. I seriously doubt you will find the entire tree available for english class. However, you may want to look at these sites.
"...Confucius' descendants were repeatedly identified and honored by successive imperial governments with titles of nobility and official posts. They were honored with the rank of a marquis thirty-five times since Gaozu of the Han Dynasty, and they were promoted to the rank of duke forty-two times from the Tang Dynasty to the Qing Dynasty. Emperor Xuanzong of Tang first bestowed the title of "Duke Wenxuan" on Kong Suizhi of the 35th generation. In 1055, Emperor Renzong of Song first bestowed the title of "Duke Yansheng" on Kong Zongyuan of the 46th generation.
Despite repeated dynastic change in China, the title of Duke Yansheng was bestowed upon successive generations of descendants until it was abolished by the Nationalist Government in 1935. The last holder of the title, Kung Te-cheng of the 77th generation, was appointed Sacrificial Official to Confucius. Te-Cheng died in October 2008, and his son, Kung Wei-yi, the 78th lineal descendant, had died in 1989. Kung Te-cheng's grandson, Kung Tsui-chang, the 79th lineal descendant, was born in 1975; his great-grandson, Kung Yu-jen, the 80th lineal descendant, was born in Taipei on January 1, 2006. Te-Cheng's sister, Kong Demao, lives in mainland China and has written a book about her experiences growing up at the family estate in Qufu. Another sister, Kong Deqi, died as a young woman.
Confucius's family, the Kongs, has the longest recorded still extant pedigree in the world today. The father-to-son family tree, now in its 83rd generation, has been recorded since the death of Confucius. According to the Confucius Genealogy Compilation Committee, he has 2 million known and registered descendants, and there are an estimated 3 million in all. Of these, several tens of thousands live outside of China. In the 1300s, a Kong descendant went to Korea, where an estimated 34,000 descendants of Confucius live today. One of the main lineages fled from the Kong ancestral home in Qufu during the Chinese Civil War in the 1940s, and eventually settled in Taiwan.
Because of the huge interest in the Confucius family tree, there was a project in China to test the DNA of known family members. Among other things, this would allow scientists to identify a common Y chromosome in male descendants of Confucius. If the descent were truly unbroken, father-to-son, since Confucius's lifetime, the males in the family would all have the same Y chromosome as their direct male ancestor, with slight mutations due to the passage of time. However, in 2009, the family authorities decided not to agree to DNA testing. Bryan Sykes, professor of genetics at Oxford University, understands this decision: "The Confucius family tree has an enormous cultural significance,” he says. “It’s not just a scientific question." The DNA testing was originally proposed to add new members, many of whose family record books were lost during 20th-century upheavals, to the Confucian family tree.
The fifth and most recent edition of the Confucius genealogy was printed by the Confucius Genealogy Compilation Committee (CGCC). It was unveiled in a ceremony at Qufu on September 24, 2009. Women are now included for the first time."
"...The family tree has 43,000 pages and is bound in 80 books. It records all the 83 generations of Confucius' offspring of more than 2 million people and is believed to be the biggest family tree in the world, Kong said.
The latest revision, or the fifth revision, took 10 years to complete and cost the philosopher's offspring more than 10 million yuan ($1.46 million), he said.
The new list, which includes minorities, overseas and female descendants for the first time, added more than 1.4 million names than the previous revision in 1937, said Kong Dewei, head of the family tree editorial office."
"Confucius (pronounced Koong Fuzi in Chinese) is believed to be the ancestor of all Chinese people with the surname of Kong (pronounced koong). The family clan yesterday released the first updated edition of their family tree in more than 70 years. The Kong 'Clan Register,' which stretches back more than 1,000 years, had not been updated since 1937. According to custom, it should be revised at 30-year intervals but in 1967 the terror and persecution of the Cultural Revolution made that impossible. "
Photographs of newest volumes and the presentation .