A child who is able to perform all number operations and is able to explain the concept of fractions is at

Options

A. partition phase
B. operational phase
C. emergent phase
D. quantifying phase

Answer

To solve the question, we need to determine the developmental phase of a child who can perform all number operations and explain the concept of fractions. Here’s a step-by-step breakdown:

### Step 1: Understand the Question
The question asks us to identify the developmental phase of a child who can perform all number operations (addition, subtraction, multiplication, division) and explain fractions.

**Hint:** Think about the stages of cognitive development as proposed by developmental psychologists.

### Step 2: Identify Number Operations
Number operations refer to basic arithmetic operations: addition, subtraction, multiplication, and division. A child who can perform these operations has a solid understanding of numerical concepts.

**Hint:** Consider what age or stage children typically learn these operations.

### Step 3: Consider the Concept of Fractions
The ability to explain fractions indicates a deeper understanding of numbers and their relationships. Fractions are often introduced after a child has a good grasp of whole numbers and basic operations.

**Hint:** Reflect on when children start learning about fractions in their education.

### Step 4: Relate to Developmental Phases
According to Piaget's theory of cognitive development, children progress through several stages:
- Sensorimotor Stage (0-2 years)
- Preoperational Stage (2-7 years)
- Concrete Operational Stage (7-11 years)
- Formal Operational Stage (12 years and up)

Given that the child can perform all number operations and explain fractions, they are likely in the Concrete Operational Stage.

**Hint:** Think about the characteristics of the Concrete Operational Stage and how they relate to the skills mentioned.

### Step 5: Conclusion
Based on the understanding of number operations and the concept of fractions, the child is in the Concrete Operational Stage of cognitive development.

**Final Answer:** The child is at the Concrete Operational Stage.