IB Year 2 Higher Level Computer Science

Tuesday 18 March 2025 - Block 5

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There are about 3 months and 11 days until school ends. How are you going to use that time to make sure you do your best?

Daily Note

Hello. 

Thank you Mariia and Ethan for volunteering and stepping up to help the 11th graders uderstand the importance of working on their IA's

I would like to remind you of our upcoming mock exams

A few of you have expressed concern about programming and the upcoming exams. We will work through one problem: 

Lets work through these problems: 

Here are the four algorithm-tracing problems, formatted using ASCII-art style tables suitable for easy pasting into your lessons.

---

Problem Set 1: Simple Algorithm (Sequence)

Command Term: Construct, Trace

Algorithm:

total = 0
for number in range(1, 6):
    total = total + number
print(total)

Trace Table:

+-----------+--------+-------+
| Iteration | number | total |
+-----------+--------+-------+
| 1         |        |       |
| 2         |        |       |
| 3         |        |       |
| 4         |        |       |
| 5         |        |       |
+-----------+--------+-------+

Final Output: ________

---

Problem Set 2: Conditional Algorithm (Selection)

Command Term: Construct, Trace

Algorithm:

values = [5, 8, 3, 10, 2]
count = 0
for val in values:
    if val > 5:
        count += 1
print(count)

Trace Table:

+-----------+-----+----------------------+-------+
| Iteration | val | val > 5 (True/False) | count |
+-----------+-----+----------------------+-------+
| 1         |     |                      |       |
| 2         |     |                      |       |
| 3         |     |                      |       |
| 4         |     |                      |       |
| 5         |     |                      |       |
+-----------+-----+----------------------+-------+

Final Output: ________

---

Problem Set 3: Nested Loop Algorithm

Command Term: Construct, Trace, Analyze

Algorithm:

result = 0
for i in range(1, 4):
    for j in range(1, 3):
        result = result + (i * j)
print(result)

Trace Table:

+------------------------+------------------------+---+---+-------+--------+
| Iteration (outer loop) | Iteration (inner loop) | i | j | i * j | result |
+------------------------+------------------------+---+---+-------+--------+
| 1                      | 1                      |   |   |       |        |
| 1                      | 2                      |   |   |       |        |
| 2                      | 1                      |   |   |       |        |
| 2                      | 2                      |   |   |       |        |
| 3                      | 1                      |   |   |       |        |
| 3                      | 2                      |   |   |       |        |
+------------------------+------------------------+---+---+-------+--------+

Final Output: ________

---

Problem Set 4: Algorithm with Selection and Iteration

Command Term: Construct, Trace, Evaluate

Algorithm:

numbers = [4, 7, 5, 2, 9]
total = 0
for num in numbers:
    if num % 2 == 0:
        total += num * 2
    else:
        total += num + 1
print(total)

Trace Table:

+-----------+-----+----------------------------+--------------+-------+
| Iteration | num | num % 2 == 0 (True/False)  | Calculation  | total |
+-----------+-----+----------------------------+--------------+-------+
| 1         |     |                            |              |       |
| 2         |     |                            |              |       |
| 3         |     |                            |              |       |
| 4         |     |                            |              |       |
| 5         |     |                            |              |       |
+-----------+-----+----------------------------+--------------+-------+

Final Output: ________

---

These ASCII-art tables should paste cleanly into your materials, making it easier for students to fill them out directly.

 

 

 

 

Please review this: 

• Online interaction and social networking
• Cloud computing and client-server architecture
• Cloud computing for specified organizations
• Copyright and intellectual property on the web
• Privacy, identification and authentication
• Network architecture, protocols and standards in future development
• Unregulated monopolies
• The decentralized and democratic web

 

 

Tags

grade_12

Reminders & routines:

Please read and follow these reminder

1. IF today == Friday:
        careers_in_computing()

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