Criterion A: The work is divided into sections: introduction, body, and conclusion.

Criterion C:

Criterion A: The work is divided into sections: introduction, body, and conclusion.

Criterion A: The work is divided into sections: introduction, body, and conclusion.

Criterion A: The work is divided into sections: introduction, body, and conclusion.

Criterion D:

Criterion A: The body of the work is further subdivided so that phases of the exploration are clearly indicated.

Comment: Each phase of the investigation was described in a different section. The sections were clearly separated from one another (eg. “Profit optimization" or "Modelling the Total Cost Equation")

Criterion A: The body of the work is further subdivided so that phases of the exploration are clearly indicated.

Comment: Each phase of the investigation was described in a different section. The sections were clearly separated from one another (eg. “Profit optimization" or "Modelling the Total Cost Equation")

Criterion A: The topic of the Internal assessment is stated clearly and explained in the introduction

Comment: The topic was clearly stated on the title page ("Optimizing the Profits of my Handmade Jewellery Business - Handmadebyrachi") and explained in the Introduction

Criterion A: The introduction includes a general description of the student's approach to the topic and what area of the math curriculum the exploration focuses on

Comment: The student stated the general approach and the math curriculum the exploration focused on - which is calculus

Criterion A: The conclusion is a summary of the outcomes and a response to the aim of the exploration stated in the introduction

Comment: The student should have included the calculated maximum profit in the Conclusion as well

Criterion A: The exploration is clear and understandable throughout - no rereading of sections is necessary

Comment: The student references Graph 5 in the text, but no such graph is present in the work. The student should have ensured that all referenced graphs are included and correctly numbered to maintain clarity and consistency

Criterion A: The consequent parts of the work are linked logically - one is the follow-up of the other

Criterion D:

Criterion A: The consequent parts of the work are linked logically - one is the follow-up of the other

Criterion A: The use of technology, when applied, is clearly indicated and explained

Criterion A: The use of technology, when applied, is clearly indicated and explained

Criterion A: If analytical software is used, its purpose is described and the link to it is provided

Comment: The student should have additionally included the link to the software in form of a footnote

Criterion A: If analytical software is used, its purpose is described and the link to it is provided

Comment: It seems that Desmos was used in the work, yet, the software was not mentioned by the student. The student should have clearly described the use of this software in the beginning of the work and included the link in form of a footnote

Criterion A: The graphs, tables, and diagrams are present in appropriate places (in the body paragraphs, after their descriptive introduction)

Comment: The student should have provided a clear description of the figure and explicitly referred to it. For example, they could have used phrasing such as, 'As shown in Figure X, ...' to establish a direct connection to the figure

Criterion B: All mathematical calculations are explained and any data presentation is described

Comment: The student did not describe all figures and did not clearly refer to them when introducing. The student should have explained all data presentation and clearly refer to them, for example in this form "Figure x. indicates..."

Criterion A: The graphs, tables, and diagrams are present in appropriate places (in the body paragraphs, after their descriptive introduction)

Comment: The student should have provided a clear description of the figure and explicitly referred to it. For example, they could have used phrasing such as, 'As shown in Figure X, ...' to establish a direct connection to the figure

Criterion C:

Criterion A: All mathematical formulae, equations, and other calculations are centered

Comment: The equations were currently left-aligned. The student should have centered all equations to enhance their presentation

Criterion A: All mathematical formulae, equations, and other calculations are centered

Comment: The equations were currently left-aligned. The student should have centered all equations to enhance their presentation

Criterion C:

Criterion A: All mathematical formulae, equations, and other calculations are centered

Comment: The equations were currently left-aligned. The student should have centered all equations to enhance their presentation

Criterion A: All mathematical formulae, equations, and other calculations are centered

Comment: The equations were currently left-aligned. The student should have centered all equations to enhance their presentation

Criterion A: All mathematical formulae, equations, and other calculations are centered

Comment: The equations were currently left-aligned. The student should have centered all equations to enhance their presentation

Criterion B: Key terms/variables are defined and explained when first introduced

Comment: Key terms were appropriately defined and explained when first introduced

Criterion B: The main concepts are described in the introduction

Comment: The main concepts were appropriately described in the Introduction, such as revenue equation etc.

Criterion C:

Criterion B: Key terms/variables are defined and explained when first introduced

Comment: Key terms were appropriately defined and explained when first introduced

Criterion B: The main concepts are described in the introduction

Comment: The main concepts were appropriately described in the Introduction, such as revenue equation etc.

Criterion B: Key terms/variables are defined and explained when first introduced

Comment: Key terms were appropriately defined and explained when first introduced

Criterion B: All mathematical calculations are explained and any data presentation is described

Comment: The student did not describe all figures and did not clearly refer to them when introducing. The student should have explained all data presentation and clearly refer to them, for example in this form "Figure x. indicates..."

Criterion A: The graphs, tables, and diagrams are present in appropriate places (in the body paragraphs, after their descriptive introduction)

Comment: The student should have provided a clear description of the figure and explicitly referred to it. For example, they could have used phrasing such as, 'As shown in Figure X, ...' to establish a direct connection to the figure

Criterion B: The degree of accuracy is stated for any rounded values

Comment: The student stated that all values were rounded to 5 significant figures

Criterion B: The student used a deductive method and set out logical proofs where appropriate

Comment: All calculations were provided with explanations, that are relevant to the outcomes of the work, for example as the student did with the optimized profit

Criterion B: The graphs, tables, and diagrams are labeled (titled and numbered) at the bottom

Criterion B: The graphs, tables, and diagrams are labeled (titled and numbered) at the bottom

Criterion E:

Criterion C:

Criterion C:

Criterion A: The work is divided into sections: introduction, body, and conclusion.

Criterion C:

Criterion B: Key terms/variables are defined and explained when first introduced

Comment: Key terms were appropriately defined and explained when first introduced

Criterion C:

Criterion C:

Criterion A: All mathematical formulae, equations, and other calculations are centered

Comment: The equations were currently left-aligned. The student should have centered all equations to enhance their presentation

Criterion C:

Criterion C:

Criterion A: The graphs, tables, and diagrams are present in appropriate places (in the body paragraphs, after their descriptive introduction)

Comment: The student should have provided a clear description of the figure and explicitly referred to it. For example, they could have used phrasing such as, 'As shown in Figure X, ...' to establish a direct connection to the figure

Criterion C:

Criterion D:

Criterion D:

Criterion D:

Criterion D:

Criterion D:

Criterion D:

Criterion D:

Criterion D:

Criterion D:

Criterion A: The work is divided into sections: introduction, body, and conclusion.

Criterion D:

Criterion D:

Criterion D:

Criterion D:

Criterion A: The consequent parts of the work are linked logically - one is the follow-up of the other

Criterion E:

Criterion B: The graphs, tables, and diagrams are labeled (titled and numbered) at the bottom

Criterion E:

Criterion E:

Criterion E: