A series of books explaining to children the essentials of numbers, shapes, colours, etc… Each book includes simple experiments and examples shown by child’s surroundings as well as practical and amusing exercises. إقرأ المزيد
A series of books explaining to children the essentials of numbers, shapes, colours, etc… Each book includes simple experiments and examples shown by child’s surroundings as well as practical and amusing exercises. إقرأ المزيد