My lo dont know how to suck from straw cup and just kept biting the straw. How can i encourage her or teach her? Im using the richell setq

Children progress through various oral motor skills, during their first few years of life. A baby begins to develop the oral motor skills necessary to learn how to drink from a straw at nine months. In the next three to four months, he or she develops a coordinated sucking and swallowing pattern to drink from a straw without difficulty. Much like any other milestone, there is a typical age range of when a child can master this skill (9 to 15 months), but they all will be able to do it with daily exposure to a straw. So just keep trying