Teaching children to tell a story, help them learn new vocabulary, teach them how to talk about chronological events ( how to start, what comes next, how it ends) preparing them to be future writer.
I like using card because it helps your child to visualize the chronology of the story, it also guide them, give them ideas of what could come next. you can make short story like : One snowy day, some children made a snow man. The next day it was very sunny and the snowman melted.
Make a few stories first then ask your child to do it with you asking what could happen next ? Eventually your child will make his own story too.
Some card have different picture in the front and the back ( like the snowman and the Christmas tree).
Your child can help you in the creation of the cards and he can color them.