Some kids will master biking in an hour, but it will take several sessions for others. If they’re losing confidence or interest during a training session, call it quits for now and try again later in the day or the next day. Some kids may be eager to practice for hours on end until they get the hang of it, but most often you should plan for single sessions to last for about 30 minutes to 1 hour. Help your kid learn to ride at the pace that’s right for them. Trying to force them or shame them into learning quickly may turn them against the entire notion of learning to ride. Don’t say things like:  “All your friends ride bikes, so it’s time you learned too.” “Your sister learned to ride in an hour, and so can you.” “We’re going to stay out here all day until you learn this.” “You want to be a big kid, right? Well, big kids ride bikes.” Learning to ride a bike should be fun, not a chore. Praise them every time they achieve a new milestone along the way, and offer a pick-me-up whenever they struggle or fall. Say things like:  “That’s the way to hold the bike steady — good job!” “Wow, you really coasted a long way that time — and straight ahead!” “You did a good job catching yourself from falling off the bike that time. Try not to turn the handlebars so sharply next time.” “We’ll be ready to bike together to the ice cream shop soon!” Some kids simply respond better to a teacher who isn’t a parent. If they’re close with a relative or family friend who’d be happy to help out, let them give it a try.  Don’t feel bad — remember that the goal is to get them riding. Once they do that, you can go on lots of bike rides together!

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Write a summary of the previous text in Vietnamese:
Chấm dứt buổi tập khi hoạt động đó không còn vui. Đừng đặt ra thời hạn vô lý hay gây áp lực không cần thiết. Luôn lạc quan và có thái độ khích lệ. Để người khác dạy con bạn lái xe nếu cần.