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

Comment: The student provided the indication of the analysis of EKG and the creation of the model meant for it

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 indicated the specific order of the processes that they carried out in the work, i.e. the use of functions, transformations, piecewise function and the statistical test that would be done in the work

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 referenced the aim of the exploration and provided the specific model that the student found in comparison with the original EKG included, hence the criterion was fulfilled

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

Comment: The student indicated the use of Desmos and GDC throughout the work providing clear explanations of the further use in the work ensuring that the specific parts of the work were supported by the technology used and the indications and explanations were provided

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

Comment: The student explains the specific parts of the calculation process such as the substitutions or the creations of the models as well as specific forms of functions present in the work which are further applied to the calculation process

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

Comment: The student indicated the use of Desmos and GDC throughout the work providing clear explanations of the further use in the work ensuring that the specific parts of the work were supported by the technology used and the indications and explanations were provided

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

Comment: The link to the Desmos software wasn't provided in the work. The student should have ensured that they provided the link to the analytical software applied to ensure that the criterion was fulfilled

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

Comment: All the variables in the work were introduced when introduced such as the QRS complex, and the specific forms of the quadratic functions such as the standard, vertex, and factored form. The specific segments of the EKG diagram were also introduced in the work and provided with an explanation in the form of a diagram

Criterion B: Additional terms are defined in detail in appropriate places (dependent on the development of the exploration)

Comment: The additional terms such as the specific variables present in the equations were defined below such equations

Criterion B: Additional terms are defined in detail in appropriate places (dependent on the development of the exploration)

Comment: The additional terms such as the specific variables present in the equations were defined below such equations

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

Comment: All the variables in the work were introduced when introduced such as the QRS complex, and the specific forms of the quadratic functions such as the standard, vertex, and factored form. The specific segments of the EKG diagram were also introduced in the work and provided with an explanation in the form of a diagram

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

Comment: All the variables in the work were introduced when introduced such as the QRS complex, and the specific forms of the quadratic functions such as the standard, vertex, and factored form. The specific segments of the EKG diagram were also introduced in the work and provided with an explanation in the form of a diagram

Criterion B: The main concepts are described in the introduction

Comment: The only main concepts that were introduced were the possbile assumptions in the work, however the student did not describe any of the basic function models or the chi-squared tests that were applied later in the work. The student should have ensured that they provide

Criterion B: Additional terms are defined in detail in appropriate places (dependent on the development of the exploration)

Comment: The additional terms such as the specific variables present in the equations were defined below such equations

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

Comment: All the variables in the work were introduced when introduced such as the QRS complex, and the specific forms of the quadratic functions such as the standard, vertex, and factored form. The specific segments of the EKG diagram were also introduced in the work and provided with an explanation in the form of a diagram

Criterion B: Additional terms are defined in detail in appropriate places (dependent on the development of the exploration)

Comment: The additional terms such as the specific variables present in the equations were defined below such equations

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

Comment: All the variables in the work were introduced when introduced such as the QRS complex, and the specific forms of the quadratic functions such as the standard, vertex, and factored form. The specific segments of the EKG diagram were also introduced in the work and provided with an explanation in the form of a diagram

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

Comment: The student explains the specific parts of the calculation process such as the substitutions or the creations of the models as well as specific forms of functions present in the work which are further applied to the calculation process

Criterion B: Additional terms are defined in detail in appropriate places (dependent on the development of the exploration)

Comment: The additional terms such as the specific variables present in the equations were defined below such equations

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

Comment: All the variables in the work were introduced when introduced such as the QRS complex, and the specific forms of the quadratic functions such as the standard, vertex, and factored form. The specific segments of the EKG diagram were also introduced in the work and provided with an explanation in the form of a diagram

Criterion B: Additional terms are defined in detail in appropriate places (dependent on the development of the exploration)

Comment: The additional terms such as the specific variables present in the equations were defined below such equations

Criterion B: Additional terms are defined in detail in appropriate places (dependent on the development of the exploration)

Comment: The additional terms such as the specific variables present in the equations were defined below such equations

Criterion B: Additional terms are defined in detail in appropriate places (dependent on the development of the exploration)

Comment: The additional terms such as the specific variables present in the equations were defined below such equations

Criterion B: Additional terms are defined in detail in appropriate places (dependent on the development of the exploration)

Comment: The additional terms such as the specific variables present in the equations were defined below such equations

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

Comment: The student explains the specific parts of the calculation process such as the substitutions or the creations of the models as well as specific forms of functions present in the work which are further applied to the calculation process

Criterion B: Additional terms are defined in detail in appropriate places (dependent on the development of the exploration)

Comment: The additional terms such as the specific variables present in the equations were defined below such equations

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

Comment: All the variables in the work were introduced when introduced such as the QRS complex, and the specific forms of the quadratic functions such as the standard, vertex, and factored form. The specific segments of the EKG diagram were also introduced in the work and provided with an explanation in the form of a diagram

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

Comment: The student explains the specific parts of the calculation process such as the substitutions or the creations of the models as well as specific forms of functions present in the work which are further applied to the calculation process

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

Comment: The student indicated the use of Desmos and GDC throughout the work providing clear explanations of the further use in the work ensuring that the specific parts of the work were supported by the technology used and the indications and explanations were provided

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

Comment: The student explains the specific parts of the calculation process such as the substitutions or the creations of the models as well as specific forms of functions present in the work which are further applied to the calculation process

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

Comment: The student indicated that the rounding that will be present in the work is to 4 significant figures, hence the degree of accuracy was stated in the work

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

Comment: Although it wasn't a detrimental mistake, the student did not label the additional content at the top but at the bottom. The student should have ensured to label those figures at the bottom instead

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

Comment: Although it wasn't a detrimental mistake, the student did not label the additional content at the top but at the bottom. The student should have ensured to label those figures at the bottom instead

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