1. The Effect of Guided Inquiry Laboratory on Conceptual Understanding Miha Lee California State University, Northridge

2. STUDENTS' PRECONCEPTIONS ABOUT METALS’ PHYSICAL PROPERTIES CodesConcept amatter that conduct (heat) and electricity bmatter that has malleability and ductility c matter that has metallic luster dmatter in a solid state at room temperature ematter that has free electrons fmatter that is dense and hard gmatter that has crystal structure of atoms hmatter that has magnetism imatter that is like iron

3. STUDENTS' CONCEPTS ABOUT METALS’ CHEMICAL PROPERTIES CodesConcept 1elements that readily lose electrons to form cations 2elements that has metallic bond between cations and free electrons 3elements that are likely to be oxidized (rusted) 4elements that react with acids generating hydrogen gas 5elements that react with water generating hydrogen gas 6elements that are placed at the lower left on the periodic table. 7elements composed of cations that are solidified 8 elements that are strongly reactive 9elements that have strong reducing ability 10elements become basic when dissolved in water

5. 61% 37%

10. # of Students who achieved the goal of each activity % of Students who achieved the goal of each activity Activity 113384.18 Activity 215698.73 Activity 3157100 Activity 414793.04 Students’ achievement on the formative tests in each activity