POSTSCRIPT: For the container you could only use the file as an envelope.
Memory intuition Game: Guess, what picture I show Prepare two it is similar looking pictures.
Show to your child of one of them.
Take out these two fig.
and ask that they assumed what was it that you showed of remind of return of a debt to be surprised, they understand it VERY OFTEN!
Bring animals to their mothers Show a picture with animals.
Give to your child of young animals and ask that they brought animals to the mothers.