Concept:Science teaching orientations vary by the role of teacher and student. Didactic Direct is teacher-led demonstration; Active Direct adds student activity; Guided Inquiry involves teacher-facilitated exploration; Open Inquiry is student-driven exploration.
Explanation:- (a) Didactic Direct: Teacher presents the concept and then shows an illustration or demonstration. This matches description (ii).
- (b) Active Direct: Teacher explains the concept, then students do an activity based on it. This matches description (iv).
- (c) Guided Inquiry: Teacher leads students to explore a phenomenon and guides them to the desired concept. This matches description (i).
- (d) Open Inquiry: Students explore freely using their own methods; teacher facilitates but does not prescribe. This matches description (iii).
Answer:Option B: (a) – (ii), (b) – (iv), (c) – (i), (d) – (iii)