Skip counting is very important to help build a solid foundation for multiplication. Skip counting is very similar to the concept of multiplication - fast adding or counting in multiples. If they already now how to skip count by 3s, then it is easier to read 3 X 4 as 3 counted 4 times 12. Skip counting is also important when making equivalent fractions and finding common denominators.
It is important to tell students why it is important to skip count and relate it to their daily lives. Some practical examples for counting by twos are eyes, ears, hands, feet, shoes & socks. Ask the student to count all the eyes or shoes in the classroom.