Start learning mathematic in Dot methods

After going to enrichment class, mommy knew how glenn doman method works.
So mommy decided to DIY the flash card for mathematic and words. Buying the ready made is expensive.
One set of Mathematic kit is S$380 and one set of reading kit is S$650.

Mommy did some researches in the internet and finally mommy could make own mathematic and reading kit.
Mommy spent S$30 for 50 blank cards (11'' x 11'' )

And starting from today, mommy taught him 5 cards ( dot 1 - 5 ). He seems pretty interested when mommy start to hold the cards. Since mommy only flashes them twice which is almost less than 15 seconds.
He gets very curious and wants more. But according to the rule of thumb, the lesson must be stopped before it gets boring so mommy decides to stop it.

After 15 - 30 minutes, mommy repeats again and he's very interested and seem that he wants it more and more.....
Hopefully, it works to him. At least to simulate his right brain.