TY - JOUR AU - Martin H. Smith AU - Richard P. Enfield BT - Journal of Extension C6 - University of California - Davis; University of California Cooperative Extension, San Luis Obispo County IS - 6 LA - eng PY - 2002 T2 - Journal of Extension TI - Training 4-H teen facilitators in inquiry-based science methods: The evaluation of a "step up" incremental model UR - https://archives.joe.org/joe/2002december/a3.php VL - 40 ER -