Analysis of Spanish pre-service teachers’ mental models of geologic time

This study uses a one-group pre-test and post-test design to describe the mental models of geologic time held by a group of Spanish pre-service primary teachers, before and after an instructional intervention that introduced the work with different timescales. The questionnaire was given before instruction and five weeks after it. It consists of a timeline where seven key events were to be sequenced, and two questions, one open-ended and one...