Another aspect of collateral learning exhibited by the PBL experimental group students was their ability to generate more problem-solving strategies than their peers in the comparison group (15 students versus six students). They were also able to enumerate a wider variety of resources for answering questions (17 students versus seven students). The information explosion has made it difficult for educational systems to teach students all there is to know; it is therefore incumbent upon those in educational settings to encourage learners to ask good questions, find information, and systematically solve problems. Results of this pilot study indicate that PBL can help students gain expertise in the skills that will enable them to become lifelong learners.