Visual modes of efficacious communication not to exceed one-fourth of instructional time: Study

The paper by Dr Lalit Kishore[1], then Principal Kendriya Vidyalaya No. 2, NFL, Bathinda, titled "A STUDY OF SECONDARY STUDENTS ' REACTIONS TOWARDS LOW - COST PHYSICS DEMONSTRATIONS IN A VARIETY OF SITUATIONS WITH AND WITHOUT VIDEO DISPLAY" was published in 1989 in the journal 'Progress of Education' ( Volume 64; Page 247) which was accessed at books.google.co.in › books.

Kishore [2](1989) suggests that physics classroom instruction with special reference to interactive video offers the combination of the audio-visual aids have a great flexibility, however, not more than 25% time should be given to the the modes of instruction other than the face-to=face instruction.

[1]

https://www.google.co.in/books/edition/The_Progress_of_Education/4KFHAQAAIAAJ?hl=en&gbpv=1&bsq=lalit+kishore+special+education&dq=lalit+kishore+special+education&printsec=frontcover

[2]

https://www.google.com/search?biw=1366&bih=657&tbm=bks&sxsrf=ALeKk024WTuMFvyB4jz8MMlb3VTsHlYD5Q%3A1611668901998&ei=pR0QYJW1PM2-9QP6k4ywBw&q=lalit+kishore+video+display&oq=lalit+kishore+video+display&gs_l=psy-ab.12...63836.75729.0.78117.30.30.0.0.0.0.246.4599.0j26j3.29.0....0...1c.1.64.psy-ab..1.5.794...33i10k1.0.xwy-UABKN9I