Recognizing letters and numbers?

I have a 3 year old son who has issues with his speech. He is being seen by two speech therapist. His speech is coming along but is not where he should be. I feel as though his speech has slowed him down. However, I continue to work with him a couple of times a week on certain skills. He knows his colors and shapes. He can count to 15 and say his ABC's. However, he only recognizes the letter A and the number 3. How can I teach him to recognize letters and numbers? He will be enrolled in Pre-K in August and I want to make sure he is ready for school,

I think he sounds quite normal! He isn't even in pre-k yet!

GEt the foam bath letters and numbers... My 2 year old can recognize 1-10 and he is autistic ... Manga doodle... Board books of letters and numbers... Leap frog makes a good magnet toy for the fridge... The show umi zoomi helped my 2 year learn the majority of his number/counting

And yes it's normal for him to not recognize the majority at this point but working with him won't hurt

As pp's have said its def normal at his age:) I was recently given some large flash cards and have shown my 4 yr old with the nearly 3 yr old playing along, they are recognising the pictures but no light bulb on the letters lol. Good idea helping with his speech:agree:

Thanks ladies

Get an iPad!!!!! There are some amazing apps out there! I'm sure your speech therapist would even recommend certain apps too. Good luck!