I have already started with LR to my 7 months old baby. Should I show him flash cards simultaneously??
That is entirely up to you. If he is happy to see more then by all means show him more. Just be sure he is enjoying it.
I’ve developed some flash card app for android phone , you may want to try.
Go to google play store search banjerd you will find a lot of apps .
For flash card app scroll down , find the blue DOG and red BIRD icon