Vol. 54 No. 4 (2016): SCHOOL SCIENCE
Articles

‘BACK-OF-THE-ENVELOPE’ ESTIMATION: AN EXCELLENT PEDAGOGICAL TOOL

B. K. Parida
RIE Bhubaneswar (NCERT)
J. K. Mohapatra
RIE Bhubaneswar (NCERT)

Published 2026-07-09

How to Cite

Parida, B. K., & Mohapatra, J. K. (2026). ‘BACK-OF-THE-ENVELOPE’ ESTIMATION: AN EXCELLENT PEDAGOGICAL TOOL. SCHOOL SCIENCE, 54(4), p. 17-24. https://ejournals.ncert.gov.in/index.php/SS/article/view/5161

Abstract

In this article we point out the merits of back of-the-envelope estimation as a pedagogical tool, with a few wonderful examples from the history of science and some simple worked out examples from school level science. The same may be utilised by teachers and students to make teaching-learning more engaging, interesting and effective.