When are letter reversals in writing no longer appropriate?

Letter reversals, when children write letters backwards or upside down, can be common up until the age of 7 years. It is often called mirror writing. This is due to poor working memory as well as weaknesses in visual processing skills. Children typically reverse the letters b, d, q, p and the numbers 9,5 and 7. People often think this is a sign of dyslexia however dyslexia is more complex than that.

https://www.nessy.com/uk/teachers/further-dyslexia-information/dyslexia-and-visual-difficulties/

What can I do to help my child with letter reversals?

Have your child say the sound as they are writing the letter to develop muscle memory. 

Work on one letter or number at a time.

Use textured writing (sandpaper, salt tray, gel mats)

What can I do at home to help my child improve his working memory?

There are several ways you can help improve your child’s working memory at home. 

Practice visualization. Encourage your child to create an image in their mind or draw a picture of what they have just read. 

Let them teach you. Ask your child to teach you what they have recently learned, whether it be something they learned at school or in soccer practice. 

Play memory games or cards. Games such as concentration, UNO, or Go Fish are fun games to help build your child’s working memory.