Brain Child.....

Here is an idea about how to get the children to understand what they are asked to do without having to raise the voice and get the emotions activated.  An example would be writing a note to a child that can read, that has left their backpack on the floor, for the hundredth time.  Dear (name), I do not like to lay on the floor, would you please hang me up so I will not get stepped on?  Thank-you.
If the amygdala is activated, with a command, then the child goes into fight or flight mode.  Their emotions are activated and well the results are usually the same.  If the child is given a note then the prefrontal cortex gets engaged, they have to read and then get the action done.  This could be expanded into having a board where chores are written down. 
It is best to not use too many words, short directions, pointing to the clock, homework, dishes, etc. 
See if it works.

LENS neurofeedback is good for the brain.  It is noninvasive and can help children to have a higher functioning ability.  It will smooth out the brain and make the brain function on a good level.