“Collaboration of students in learning situations supply 'comprehensible input' in low anxiety situations” is the basis of language acquisition.

• This implies that the collaboration of students in learning situations provides low anxiety situations.
• These methods do not force early production in the second language but allow students to produce when they are 'ready', recognizing that improvement comes from supplying communicative and comprehensible input, and not from forcing and correcting production.
• Whereas in teacher-directed learning in the classroom and students receive feedback for correction regularly provide highly anxious situations which do not involve many students of a classroom as this doesn't provide constructive feedback.
• Furthermore, homework designed to use parents’ support doesn't provide opportunities for students to actively involve in acquiring a second language and practicing the language.
• According to Krashen 'comprehensible input' is the crucial and necessary ingredient for the acquisition of language.  

Hence, we can conclude that Collaboration of students in learning situations provide low anxiety situation and supply comprehensible input as well, which are the basis of language acquisition.