✤ Step-by-step book of all the lessons of the fourth grade of primary school with answers and new edition of 1403-1402 completely free and without the need for the Internet✤

The list of step-by-step lessons for the fourth grade is as follows:
1- Mathematics
2- Sciences
3- Reading Persian
4- Written Persian
5-Gifts of the sky
6- Quran
7- Social studies

Some features of the program:
✔ The possibility of activating the scrolling or back-to-back mode
✔ Ability to automatically save the last read page
✔ Ability to zoom in pages
✔ Ability to activate night mode
✔ Ability to change the background color
✔ Can be installed on all Android 4 and above phones
✔ Very simple and smooth user interface