The present study was conducted to assess the effectiveness of planned teaching programme on teenage pregnancy in terms of knowledge among adolescent girls in selected higher secondary school of Junagadh city. The objectives of the study were to assess the pre-test knowledge, evaluate the effectiveness of planned teaching programme and find out the association between post-test knowledge scores with selected demographic variables.

A quantitative research approach with pre-experimental one group pre-test post-test design was adopted. The study was conducted among 50 adolescent girls selected by random sampling technique. Structured knowledge questionnaire was used to collect the data.

The findings revealed that the overall pre-test mean score was 57.52% and post-test mean score was 83.85%. The calculated ‘t’ value was higher than the table value at 0.05 level of significance, indicating that planned teaching programme was effective.