Quote
Four-year-old children composed numbers up to a thousand; and, later, children between five and six years of age made such remarkable progress that...
Four-year-old children composed numbers up to a thousand; and, later, children between five and six years of age made such remarkable progress that...
This system in which a child is constantly moving object; with his hands and actively exercising his senses, also takes into account a child's special...
This system in which a child is constantly moving objects with his hands and actively exercising his senses, also takes into account a child's special...