U can use carton too to teach her to sit

Is ur baby big? If yes it sometimes contributes to delay development, my baby clocked 10 months b4 he started crawling. U should be more concern with his sitting

@10 months he shld b able to sit already but if not sit d baby down n use pillows 2 support him. N 4 crawling put colourful n musical toyz or movable toys d baby wld b attracted 2 go n get it. So it wld enable him 2 move