. >>> amy chua in 2011 was known as the tiger mom, when she methods. are speaking out. >> you remember critics chastised her, saying the tactic tactics would be damaging to her daughters. as time went on and they grew up, things have gone, by their mom's standards, according to plan. >> reporter: the tiger mom's cubs are all grown up and speaking out. >> it's a memoir. >> reporter: five years since the release of amy chua's memoir memoir, oldest daughter sophia is a graduate from harvard and second lieutenant in the army. getting her law degree at yale. youngest, lulu, is an art history major at harvard. the parenting style was a questionphenomenon when their chinese mother and yale law professor introduced it in 2011. >> maybe we can learn a littlesomelittle something, too. little more on building the basic skills early on. going to crack if we're a little hard on them. >> reporter: in an interview, the daughters are standing by their tiger mom, saying they wouldn't raise their own children any other way. 23-year-old sophia says everyone talks about m

.>>> amy chua made headlines back 2011. she be known as the tiger mom when she shared her strict parenting meth >>ive years later, her kids are speaking o. >> you rememr critics chastiseher, saying the tactics would be damaging to her daughters. as time went on and they grew up, thgs have gone, by their mom's andards, accordi to plan. repr: t tiger mom's cubs are a g up and speaking out. >> it's a memoir. the rease of amy chua's memoir "battle hymn of t tig mother" oldt daughter sophia is a gduate fr harvard and second lieutenant in the u.s. army. getting r law degr at yale. youngest, lulu, is an t history major also at harvard. the parenting yle was a phenomen whetheir chinese mother a yallaprofessor introduced it in 2011. >> maybe we can leara little something, too. a lite harr on early chd -- i don't know if drilling is the rig word. hard rk, building the bic sk ear on, n being id iour kids will crack if 're a little hard on the reporter: now in an interview with t teleaph, those daughters are standing by their mom, sayi