There is no one definitive order to teach letter sounds, but some common sequences include:

Ultimately, the best order to teach letter sounds will vary depending on the individual child. Some children may learn more easily if letters are taught in a specific order, while others may be able to learn them in any order. It is important to be flexible and adjust the order of instruction as needed.

Here is a specific example of an order that you could use to teach letter sounds:

This order starts with high-frequency letters, teaches letters that make similar sounds together, and separates letters that look similar. It also teaches short vowels before long vowels and lower case letters before upper case letters.

It is important to note that this is just one example of an order that you could use. There are many other possible orders that could be effective. The best way to find the right order for your child is to experiment and see what works best for them.