### Introduction

Note: If you have problems with viewing this video using the Chrome browser, please try another browser.

Note: If you have problems with viewing this video using the Chrome browser, please try another browser.

### Key dates

# Face-to-face marker training

7 June (9am-4pm)

# Face-to-face marker training

7 June (9am-4pm)

# Marking

8-13 June

If required, the marking operation may be extended.

# Marking

8-13 June

If required, the marking operation may be extended.

### Additional materials

# QCAA resources

# QCAA resources

# Information Statement for Schools

# Information Statement for Schools

# Supplementary materials

Sent out with the Online Marker Training email.

# Supplementary materials

Sent out with the Online Marker Training email.

### Example 1

This example is taken from the sample instrument, paper 2, question 1.

A model response is available in the Supplementary materials.

The focus is on the *Knowledge and Procedures *criterion, KAP.

This example is taken from the sample instrument, paper 2, question 1.

A model response is available in the Supplementary materials.

The focus is on the *Knowledge and Procedures *criterion, KAP.

# Correct answers

# Correct answers

# Explanation

# Explanation

In this response, the value of *a* is stated as 17.01. Therefore, the first statement is false.

Pythagoras’ theorem was used to calculate the perpendicular height, *h*, and then the sine of angle *b*. These are appropriate procedures that could be used to determine *b*. Therefore, the second statement is true.

The value of *a*, which is 17.01, has not been correctly carried through the response to determine the value of *b*. In particular, substitution errors were made in the use of Pythagoras’ theorem, indicated in the blue box. Also, a calculation error was made during the use of Pythagoras’ theorem, indicated in the red box. Therefore, the third statement is false.

In this response, the value of *a* is stated as 17.01. Therefore, the first statement is false.

Pythagoras’ theorem was used to calculate the perpendicular height, *h*, and then the sine of angle *b*. These are appropriate procedures that could be used to determine *b*. Therefore, the second statement is true.

The value of *a*, which is 17.01, has not been correctly carried through the response to determine the value of *b*. In particular, substitution errors were made in the use of Pythagoras’ theorem, indicated in the blue box. Also, a calculation error was made during the use of Pythagoras’ theorem, indicated in the red box. Therefore, the third statement is false.

### Question 1

- 12.36 has been stated as the value of 𝑎.
- Mathematical rules and/or procedures have been selected that could enable 𝑏 to be determined. (numerical errors may be present)
- The value 𝑏 is the result of the correct application of mathematical procedures.

This question is taken from the sample instrument, paper 2, question 1.

The focus is on the *Knowledge and Procedures* criterion, KAP.

Make judgments on the following statements:

### Question 1 answer

This question is taken from the sample instrument, paper 2, question 1.

The focus is on the *Knowledge and Procedures* criterion, KAP.

This question is taken from the sample instrument, paper 2, question 1.

The focus is on the *Knowledge and Procedures* criterion, KAP.

# Correct answers

# Correct answers

# Explanation

# Explanation

12.36 is the stated value of *a*. Therefore, the first statement is true.

The required triangle height shown as a question mark in the blue box cannot be determined, because there are two unknowns. Therefore, the procedure selected could not be used to determine the value of *b*. Similarly the procedure shown in the red box also contains multiple unknowns. Therefore, the selected procedures could not be used to determine *b*. The second statement is false.

The value of *b* is stated as 30 degrees. This is not the correct application of the selected procedures. The numerical answer for* b* cannot be supported by the procedures shown. The third statement is false.

12.36 is the stated value of *a*. Therefore, the first statement is true.

The required triangle height shown as a question mark in the blue box cannot be determined, because there are two unknowns. Therefore, the procedure selected could not be used to determine the value of *b*. Similarly the procedure shown in the red box also contains multiple unknowns. Therefore, the selected procedures could not be used to determine *b*. The second statement is false.

The value of *b* is stated as 30 degrees. This is not the correct application of the selected procedures. The numerical answer for* b* cannot be supported by the procedures shown. The third statement is false.

### Example 2

This example is taken from the sample instrument, paper 1, question 8.

A model response is available in the Supplementary materials.

The focus is on the *Communication and Justification *criterion, CAJ. Note that student answers do not need to be correct when making judgments in CAJ.

This example is taken from the sample instrument, paper 1, question 8.

A model response is available in the Supplementary materials.

The focus is on the *Communication and Justification *criterion, CAJ. Note that student answers do not need to be correct when making judgments in CAJ.

# Correct answers

# Correct answers

# Explanation

# Explanation

There has been no indication of where the median value would be located in the stem-and-leaf plot. The first statement is false.

Calculations have been used to explain how *x* was obtained, even though the selected method and final answer are incorrect. Therefore, the second statement is true.

There has been no indication of where the median value would be located in the stem-and-leaf plot. The first statement is false.

Calculations have been used to explain how *x* was obtained, even though the selected method and final answer are incorrect. Therefore, the second statement is true.

### Question 2

- Reasoning has been used to explain where the median value is located in the stem-and-leaf plot.
- Calculations have been used to explain the value of 𝑥, or the age.

This question is taken from the sample instrument, paper 1, question 8.

The focus is on the *Communication and Justification* criterion, CAJ. Note that student answers do not need to be correct when making judgments in CAJ.

Make judgments on the following statements:

### Question 2 answer

This question is taken from the sample instrument, paper 1, question 8.

The focus is on the *Communication and Justification* criterion, CAJ. Note that student answers do not need to be correct when making judgments in CAJ.

This question is taken from the sample instrument, paper 1, question 8.

The focus is on the *Communication and Justification* criterion, CAJ. Note that student answers do not need to be correct when making judgments in CAJ.

# Correct answers

# Correct answers

# Explanation

# Explanation

The location of the median value has been explained, even though the reasoning and conclusion are incorrect. Therefore, the first statement is true.

Calculations have not been provided to explain how the age was obtained. Therefore, the second statement is false.

The location of the median value has been explained, even though the reasoning and conclusion are incorrect. Therefore, the first statement is true.

Calculations have not been provided to explain how the age was obtained. Therefore, the second statement is false.

### Example 3

This example is taken from the sample instrument, paper 2, question 6.

A model response is available in the Supplementary materials.

The focus is on the *Modelling and Problem Solving *criterion, MAP.

This example is taken from the sample instrument, paper 2, question 6.

A model response is available in the Supplementary materials.

The focus is on the *Modelling and Problem Solving *criterion, MAP.

# Correct answer

# Correct answer

# Explanation

# Explanation

### Question 3

- The height value √𝟑 or 1.73 has been stated.
- The cosine rule has been correctly stated.
- Appropriate values have been substituted into a chosen rule and used correctly.
- The value of cos 𝜃 been stated as 1/3 or 0.33.
- The value of angle 𝜃 has been stated as 70.53°, allowing for follow-through error.

This question is taken from the sample instrument, paper 2, question 6.

The focus is on the *Modelling and Problem Solving* criterion, MAP.

Make judgments on the following statements:

### Question 3 answer

This question is taken from the sample instrument, paper 2, question 6.

The focus is on the *Modelling and Problem Solving* criterion, MAP.

This question is taken from the sample instrument, paper 2, question 6.

The focus is on the *Modelling and Problem Solving* criterion, MAP.

# Correct answers

# Correct answers

# Explanation

# Explanation

### Thank you

Thank you for completing the Online Marker Training.

Thank you for completing the Online Marker Training.

### Feedback

Before you go ...

Would you mind helping us learn by letting us know what you think of this course and how it might be improved?