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Justice for All: The Legal System · Semester 2

Courtroom Roles and Responsibilities

Students learn about the different people involved in a court case (judge, lawyer, jury, witness) and their functions.

Key Questions

  1. Differentiate the responsibilities of a judge, lawyer, and witness in a court proceeding.
  2. Explain how each role contributes to the overall fairness of the judicial process.
  3. Predict the challenges that might arise if one of these roles was missing or ineffective.

MOE Syllabus Outcomes

MOE: Justice System - P3MOE: Rule of Law - P3
Level: Primary 3
Subject: CCE
Unit: Justice for All: The Legal System
Period: Semester 2

About This Topic

Building on the properties of materials, this topic focuses on the practical application of that knowledge. Students learn to evaluate why specific materials are chosen for everyday objects based on their properties. For example, why is a frying pan made of metal but its handle made of plastic? This connects science to design and technology, a key aspect of the MOE curriculum.

In Singapore, we can look at the materials used in our HDB flats, our public transport, and even our school uniforms. Students learn that the 'best' material depends on the function of the object. This topic particularly benefits from collaborative problem-solving where students must design a solution to a real-world challenge using their knowledge of material properties.

Active Learning Ideas

Watch Out for These Misconceptions

Common MisconceptionAn object can only be made of one material.

What to Teach Instead

Most objects, like a pair of spectacles or a school bag, use multiple materials for different parts. A 'dissection' activity where students list all materials in a complex object helps correct this.

Common MisconceptionThe most expensive material is always the best choice.

What to Teach Instead

The 'best' material is the one that fits the function. Using gold for a hammer would be expensive but a poor choice because it's too soft. Peer discussion about 'fitness for purpose' helps students understand this.

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Frequently Asked Questions

How can active learning help students understand why materials are chosen?
Active learning through 'design challenges' forces students to apply their knowledge. When they have to build a prototype, they quickly realize that a material's property directly affects the object's performance. For example, if they use paper for a boat, it will fail. This immediate feedback, combined with peer review and discussion, helps them connect abstract properties to practical utility.
Why are handles of cooking pots often made of plastic or wood?
Plastic and wood do not conduct heat well. This means they stay cool even when the metal pot is very hot, allowing us to pick up the pot without burning our hands.
Can one material be used for many different things?
Yes! Plastic is a great example. It can be made into hard helmets, flexible bottles, or waterproof raincoats because it can be manufactured with different properties.
What material is best for a school desk?
A school desk needs to be strong, hard, and durable. Wood or metal are good choices for the frame, while a hard plastic or wood laminate is good for the top surface.

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