This is another step that not only works for autistic children but has been shown to have improvements in healthy adults.

The dual n-back game is a game that trains your working memory by giving you multiple sensory inputs, like hearing something and seeing something, then forcing you to recall them after a short period. It has been shown to increase fluid intelligence.
Fluid intelligence is our ability to learn new information, retain it, then use it to figure out new problems and build new skills. It's kind of like how easily you can learn things in general.
The first study that discovered this found that people who played dual n-back game for two weeks got better at the game, but more importantly, showed improvement in unrelated cognitive tasks, which is amazing [52].
A follow-up study found that after 14 hours of training spread out over five weeks led to an increase in dopamine D1's binding potential in certain areas of the brain. This is associated with neural growth and development [53]. This means that playing dual n-back literally grows the brain!
Those studies were with healthy adults. Andrea Kuszewski is a behavior therapist who specializes in working with children on the spectrum. She's been using dual n-back with her patients and has seen good results as well [54].
The main way to play dual n-back is on the computer. Which means more screen time, but I think this screen time is worth it, especially if you cut down on other uses.
For your computer, look for Brain Workshop's Dual N-Back Game. For your phone or tablet, just search "Dual N-Back" in the app shop.
However, some clever people have found how to play with dice, cards, and three people. This way, you can give multiple people in the family a brain boost by playing this all together:
http://www.toothycat.net/wiki/wiki.pl?DouglasReay/...