Blended learning (BL) is a teaching method where a portion of the traditional face-to-face instruction is replaced by web-based online learning. How much of the face-to-face instruction that are replaced by online instruction varies, but between 30%-70% of the instruction is delivered online.
The idea of blended learning is to give students different approaches to learning using the most appropriate technological instruments available to achieve learning goals and achieve better learning outcomes for students.
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The possibilities and advantages of use of BL in education are many. Online courses with teaching videos and exercises are especially good options if geographic distance, caring responsibilities or other reasons that make physical presence at the educational institution difficult. The course can mainly take place online, and the resources in the group can be effectively used for discussion and problem solving sessions, either online or face-to-face.
BL also accommodate students' different learning styles by varying methods. The interplay between the content communicated through e-learning on one hand, and discussion and reflection on the other side can provide a deeper understanding and learning among students.
"Blended learning is more than electronic textbooks and productivity tools. It means investing or adopting new learning environments that work better for students and teachers." (source: Edudemic.com)