Keywords

• basic,
• book,
• boy,
• brothers,
• caucasian,
• child,
• childhood,
• classroom,
• concentrate,
• concept,
• count,
• development,
• education,
• educational,
• hand,
• homework,
• innocence,
• isolated,
• kid,
• learn,
• letters,
• light,
• math,
• notebook,
• number,
• pencil,
• picture,
• play,
• preschool,
• read,
• recognize,
• school,
• schoolboy,
• skill,
• small,
• smile,
• son,
• start,
• student,
• study,
• success,
• think,
• together,
• two,
• up,
• white,
• win,
• write,
• youth,
• youthfu,
• is,
• writing,