گام به گام چهارم دبستان

✤ 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- Mathematics2- Sciences3- Reading Persian4- Written Persian5-Gifts of the sky6- Quran7- Social studiesSome 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