Conditional logic and decision structures are at the heart of how programs make choices. This Grade 7 computer science worksheet helps students explore how conditions, Boolean values, branches, and nested decisions determine the path an algorithm follows. Through realistic programming examples and structured practice, students trace rules, predict outcomes, and explain why a program selects a particular action.

From Conditions to Program Outcomes

Students examine how an if-else structure responds to a condition that evaluates as true or false. They apply decision rules to examples involving test scores, battery levels, temperatures, even numbers, and age eligibility. These scenarios connect computational thinking to familiar situations while developing precision in tracing algorithms.

The reading passage, How Programs Make Decisions, introduces the role of conditions in controlling program flow. It explains how branches produce different outcomes, how nested conditions place one decision inside another, and why programmers test different inputs to identify errors or unexpected behavior. Students use this foundation to reason through rule-based systems rather than simply memorizing programming terminology.

What Students Practise

• Identifying conditions and interpreting true or false Boolean results.
• Distinguishing between the true and false branches of an if-else structure.
• Tracing conditional algorithms to determine their outputs for specific inputs.
• Recognising nested conditions and explaining why one decision may depend on another.
• Evaluating decision rules and explaining how incorrect or poorly ordered conditions can affect program behaviour.

Activities Included in the Worksheet

The worksheet combines several ways for students to demonstrate their reasoning. Learners read and summarise a dialogue, match related concepts, complete a cloze passage, and label a diagram. A focused reading passage builds the background knowledge needed for multiple-choice questions, true-or-false statements, and short-answer responses. An extended-response task asks students to design a school library borrowing system, describe its conditions and possible outcomes, and explain how they would test it using different inputs, including a nested condition.

Teacher Guide Included

A separate Teacher Guide PDF accompanies the student worksheet. It contains Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes, giving teachers additional support for lesson preparation and classroom discussion.

Ways to Use This Resource

Use this Grade 7 computer science practice during an algorithms and computational thinking lesson, as independent classwork, for guided review, or as a follow-up activity after introducing conditional statements. The varied tasks provide opportunities to check vocabulary, assess algorithm tracing, and evaluate students' ability to justify decisions using explicit rules. The library-system design task also gives students an opportunity to apply conditional logic to a more complex scenario.

This resource focuses on general computer science concepts and is not identified as aligned to a specific curriculum standard. It provides a structured way to practise decision structures, logical reasoning, and input-based testing within introductory programming.