FreeMathWorksheet
FreeMathWorksheet

Timed Practice

TN-CSCI-IB-87234 · v3.-8

Applying Algorithms

IB Diploma · Computer Science · Algorithms · International Baccalaureate

Grade

IB Diploma

Subject

Computer Science

Topic

Algorithms

Subtopic

Applying Algorithms

Curriculum

International Baccalaureate

Difficulty

Core

Time

20 minutes

Total marks

44

Student name

Teacher name

Date

Learning objectives

  • Recognise applying algorithms accurately in computer science contexts.
  • Explain the underlying rule of applying algorithms in the student's own words.
  • Apply applying algorithms to multi-step and unfamiliar problems.
  • Justify a chosen method and identify errors in another student's work.

Skills assessed

  • Fluency and recall
  • Method and setting out
  • Reasoning and justification
  • Problem solving in context
  • Self-assessment

Instructions

  1. Write your name, your teacher's name and the date in the header.
  2. Answer every question in the space provided. Continue on the back if needed.
  3. Show all working — method marks are awarded even when the final answer is wrong.
  4. Work under exam conditions. You have 20 minutes.
  5. Complete the reflection box at the end before you hand the sheet in.

Warm-up

Bloom: Remember · 3 marks

Answer quickly. These check you are ready for the topic.

  1. 1.State one fact you already know about applying algorithms.

    [1]
  2. 2.Name one fact you already know about applying algorithms.

    [1]
  3. 3.Circle one fact you already know about applying algorithms.

    [1]

Recall

Bloom: Remember · 3 marks

Complete from memory. No calculator, no notes.

  1. 1.List the key term used in applying algorithms described here: item 1.

    [1]
  2. 2.Label the key term used in applying algorithms described here: item 2.

    [1]
  3. 3.Complete the key term used in applying algorithms described here: item 3.

    [1]

FreeMathWorksheet · TN-CSCI-IB-87234 · v3.-8

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 1 of 4

FreeMathWorksheet · IB Diploma Computer Science

Applying Algorithms

Basic Practice

Bloom: Understand · 4 marks

Work through each item. Show the step you used.

  1. 1.Work out part 1 using the rule for applying algorithms.

    [1]
  2. 2.Match part 2 using the rule for applying algorithms.

    [1]
  3. 3.Identify part 3 using the rule for applying algorithms.

    [1]
  4. 4.Identify part 4 using the rule for applying algorithms.

    [1]

Guided Practice

Bloom: Understand · 6 marks

The first step is given. Finish the reasoning.

  1. 1.Complete the method for part 1. Step 1 has been started for you.

    [2]
  2. 2.Complete the method for part 2. Step 1 has been started for you.

    [2]
  3. 3.Using the first step given, finish part 3. Step 1 has been started for you.

    [2]

FreeMathWorksheet · TN-CSCI-IB-87234 · v3.-8

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 2 of 4

FreeMathWorksheet · IB Diploma Computer Science

Applying Algorithms

Independent Practice

Bloom: Apply · 8 marks

No scaffolding. Set out your full method.

  1. 1.Solve part 1 on applying algorithms without help.

    [2]
  2. 2.Solve part 2 on applying algorithms without help.

    [2]
  3. 3.Calculate part 3 on applying algorithms without help.

    [2]
  4. 4.Solve part 4 on applying algorithms without help.

    [2]

Challenge Questions

Bloom: Analyse · 6 marks

Harder items. Attempt every one, even partially.

  1. 1.Prove the statement in part 1 about applying algorithms.

    [3]
  2. 2.Show that the statement in part 2 about applying algorithms.

    [3]

Real-life Application

Bloom: Apply · 6 marks

Use the skill in context. State units in your answer.

  1. 1.In context, work out a real computer science situation that depends on applying algorithms.

    [3]
  2. 2.In context, work out a real computer science situation that depends on applying algorithms.

    [3]

FreeMathWorksheet · TN-CSCI-IB-87234 · v3.-8

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 3 of 4

FreeMathWorksheet · IB Diploma Computer Science

Applying Algorithms

Critical Thinking

Bloom: Evaluate · 8 marks

Explain your reasoning in full sentences.

  1. 1.Evaluate whether a student's method for applying algorithms is or is not efficient.

    [4]
  2. 2.Evaluate whether a student's method for applying algorithms is or is not efficient.

    [4]

Reflection

Bloom: Create · 0 marks

Not marked. Answer honestly — this guides your next worksheet.

  1. 1.Record how confident you feel with applying algorithms and what you will practise next.

    [—]
  2. 2.Describe how confident you feel with applying algorithms and what you will practise next.

    [—]

FreeMathWorksheet · TN-CSCI-IB-87234 · v3.-8

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 4 of 4