IBL WS2 ibl and concept development
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Transcript of IBL WS2 ibl and concept development
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