Teaching operates at three levels: memory level, understanding level and reflective level. Memory level teaching (associated with Herbart) is the lowest and most basic level. Its purpose is the acquisition and retention of facts so that they can be recalled quickly and accurately.

At the memory level the emphasis is on:
Organisation of thought and ideas so that facts are stored in an orderly manner for easy recall.
Systematic presentation of material so that learners can reproduce it quickly and correctly.
Mastery of the correct sequencing of facts, ensuring information is memorised and reproduced in the proper order.
These correspond to statements (a), (c) and (e).

Why the other statements do not belong to memory level teaching:
Seeing of relationships among facts belongs to the understanding level, where meaning and connections matter, not mere recall.
Critical thinking is a feature of the reflective level, the highest level, which involves problem solving and independent judgement.
Segregating one feature from another involves analysis and discrimination, again going beyond simple rote memorisation.
Hence only the combination of organisation of thought, systematic presentation for quick reproduction, and mastery of correct sequencing describes memory level teaching.

Correct answer: (a), (c) and (e)