IBL WS2ibl and concept development

Programme• Concepts and definitions• Representations• Always, sometimes or never true

conceptdescriptive:• Definition; • critical and variable properties; • lower, equal and higher order.• Examples and non-examples

Conceptanalysis for Element• MACROSCOPIC. An element is a pure

substance that cannot be separated into simpler macroscopic substances with characteristic properties that differ from the original substance.

• MICROSCOPIC. An element is a substance composed of a single kind of atom.

Concept AttributesCRITICAL ATTRIBUTES• Cl. It is a kind of matter. (macroscopic)• C2. It is pure. (macroscopic)• C3. Separation into parts of macroscopic size results in no change in

characteristic properties.(macroscopic)• C4. It is composed of a single kind of atom. (microscopic)

VARIABLE ATTRIBUTES• Vl. It may exist as solid, liquid, or gas. (macroscopic)• V2. Examples may have different properties. (macroscopic)• V3. It may react easily or with reluctance (macroscopic)• V4. Atoms may exist in various size aggregates. (rnicroscopic)

Comparation of concept• SUPRAORDINATE CONCEPT: Matter• COORDINATE CONCEPT: Compound• SUBORDINATE CONCEPTS: hydrogen, oxygen,

mercury, iron, copper, helium, naturally occurring element; ,artificial element

• EXAMPLES: (None with perceptible attributes) hydrogen, oxygen, sulfur, iron, helium

• NONEXAMPLES: (None with perceptible attributes) water, carbon dioxide, hydrogen, sulfide, iron oxide

Graphical representations:of concepts

1. Conceptmap– Cognitive– Map relations between

concepts2. Mindmap

– Associative– Cognitive– Familiarize with and evoke

prior knowledge

3. Wordweb• Associative• Cognitive ànd

affective• Oriëntation

Mindmap of atoms and bonding

Representations

• Graph• Table• Formula• Description• …

Active thinking…

• Think, pair, share• Predict, observe, explain• Statements (examples)

IBL and Concept Development