The Premack principle is the behavior analytic term for if you do this then you get that.
The classic example is grandma telling her grandson that there no dessert until he finishes his vegetables.
This strategy is especially helpful for kids that have a hard time stopping an enjoyable activity when asked to comply with a direction.
For example, a child may become aggressive when his mother asks him to shut the TV to do his homework. The parent can switch the order. The child does his homework before having access to the preferred activity of watching TV.
If your child does well with visuals a first-then board can prove to be helpful.