The Effect of Guided Inquiry Laboratory on

Conceptual Understanding

Miha LeeCalifornia State University,

Northridge

STUDENTS' PRECONCEPTIONS ABOUT METALS’ PHYSICAL PROPERTIES

Codes Concept

a matter that conduct (heat) and electricity

b matter that has malleability and ductility

c matter that has metallic luster

d matter in a solid state at room temperature

e matter that has free electrons

f matter that is dense and hard

g matter that has crystal structure of atoms

h matter that has magnetism

i matter that is like iron

STUDENTS' CONCEPTS ABOUT METALS’ CHEMICAL PROPERTIES

Codes Concept1 elements that readily lose electrons to form cations

2 elements that has metallic bond between cations and free electrons

3 elements that are likely to be oxidized (rusted)

4 elements that react with acids generating hydrogen gas

5 elements that react with water generating hydrogen gas

6 elements that are placed at the lower left on the periodic table.

7 elements composed of cations that are solidified

8 elements that are strongly reactive

9 elements that have strong reducing ability

10 elements become basic when dissolved in water

61%

37%

# of Students who achieved the goal

of each activity

% of Students who

achieved the goal of each

activity

Activity 1 133 84.18

Activity 2 156 98.73

Activity 3 157 100

Activity 4 147 93.04

Students’ achievement on the formative tests

in each activity