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516.154071268455 (1) |
Congruences (Geometry) -- Study and teaching (Secondary) -- South Africa -- Durban -- Case studies (1) |
Congruent triangles (1) |
Deductive reasoning skills (1) |
Euclidean geometry (1) |
Reasoning in children -- Ability testing -- South Africa -- Durban -- Case studies (1) |
Reasoning skills (1) |
Triangle -- Study and teaching (Secondary) -- South Africa -- Durban -- Case studies (1) |
Van Hiele Model (1) |
Van Hiele theory (1) |
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