Criterion B:  Knowledge and Understanding (Maximum mark 6)

Strands

This criterion focuses on two main strands.

1. Knowledge and understanding – clear, relevant and coherent

2. Terminology and concepts – accurate and consistent

The assessment is based on the extent to which the research relates to the chemistry used to explore the research question and the way in which the use of appropriate terminology and concepts are used to underpin the knowledge and understanding of chemistry related to the topic and research question chosen.

Specific points covered

Specifically the assessment considers:

1. Has the research question being investigated been put into the context of chemistry?

2. Does the essay demonstrate the relevant selection of sources appropriate to the research question and is the application of these sources identifiable?

3. Is knowledge and understanding of the chosen topic and research question demonstrated ?

4. Is appropriate terminology used consistently and correctly throughout to indicate knowledge and understanding of chemistry?

Level 5-6 descriptor

How the student has addressed each of the specific points above then determines the mark out of six to be awarded. The level descriptors are given on pages 102 and 103 of the Extended Essay Guide. To achieve the highest markband of 5-6 the assessor must be satisfied that each of the two main strands has been properly and competently addressed:

Excellent knowledge and understanding is demonstrated.

i.e. The selection of source materials is clearly relevant and appropriate to the research question.
      Knowledge of the topic is shown to be clear and coherent and the sources are effectively used with understanding.

Excellent use of terminology and concepts

i.e. Accurate and consistent use is made of concepts and terminology relevant to both chemistry and the topic which
      demonstrate effective knowledge and understanding.