These suggestions come from Jaime Jo Wright writing for crosswalk.com.

First, remember that Every child is different. 

If you have more than one child, you will likely have to find multiple ways to motivate them. Think of it like taking your kids out to eat. They each have different tastes. The same is true for motivation.

It’s helpful to identify where your children are similarly motivated so you can generalize as much as possible while saving some time to help those who may lag behind.

Next, if you expect discipline from them, you must show it yourself. 

If you want your children to be motivated to fulfill their weekly chore list with responsibility and timeliness, then it’s important that you do the same.

They will, indeed, learn from example.

Third, Be gentle, be firm.

Getting your children to be motivated effectively probably won’t be acquired from shouting, demeaning, or yelling in frustration. But then, it probably won’t be acquired from suggesting, coercing, or deal-making, either.

Sometimes parents confuse gentle coaching with being flexible and compliant with the child’s demands or complaints. Be careful you do not confuse gentleness with acquiescence.

Be uncompromising in your authority but do it in love.

And finally, Teach your children to enjoy the outcome. 

We need to teach our children to enjoy the outcome of completion without an additional reward. This teaches children self-respect, self-discipline, and a healthy work ethic too.