Just remember the moment of doing good to each other, kindness, respect, trust... described by positive adjective or positive adjectively , all will going to sleep easily, happily, and peacefully. You do not teach healthy kids to learn the languages: English, Japanese, Chinese, and Vietnamese... but kids can make it become their instinct. Walking, thinking, studying countless skills: one-year-old kids, two-year-old kids, three-year- old kids never have to sit in table to learn. But that time kids can learn more than any body can imagine. Playing are learning, watching are learning, sleeping are learning, and doing are learning.... Their most powerful tools are: weakness, belove, cute, enthusiasm, pay attention, curiosity, asking, imagining, and learn, try, fail, think, learn , try, fail, think, learn, try, fail, think With Joy, enthusiasm and never said a negative work. Seeing my friend with college degree take five to ten year to learn English but fail I realize that how potential our kids are if we let them freely as themselves. Just Give them the needed basic ones, they will grow and develop incredibly. We need to accept to let them grow.