Age-Specific Milestones (Birth–3 yrs): Cognitive MCQs Quiz | Class 9

This is a multiple-choice quiz for Class IX Home Science (Code 064), based on Unit II: Human Growth & Development – I. The questions focus on the topic of Age-Specific Milestones (Birth–3 yrs), specifically covering cognitive development milestones. After completing the quiz, click ‘Submit Quiz’ to see your score and review the answers. You can also download a PDF of your answer sheet.

Understanding Cognitive Milestones (Birth to 3 Years)

Cognitive development refers to the growth of a child’s ability to think, reason, solve problems, and understand the world. The period from birth to three years is a time of incredible brain development. Tracking cognitive milestones helps in understanding a child’s progress and providing appropriate stimulation.

Key Cognitive Milestones by Age

Here’s a breakdown of typical cognitive achievements during the first three years:

Age Range Key Cognitive Milestones
Birth – 1 Year Recognizes familiar faces, explores objects with hands and mouth, develops object permanence (knowing an object exists even when hidden), imitates sounds and gestures, responds to their own name.
1 – 2 Years Says first words and simple phrases, follows one-step commands (“get your shoes”), begins pretend play (e.g., feeding a doll), points to named body parts, finds objects hidden under multiple layers.
2 – 3 Years Sorts objects by shape or color, completes simple puzzles, uses two- to three-word sentences, understands concepts like “one” and “all,” follows two-step instructions.

Exploring Core Concepts

  • Object Permanence: This is a fundamental concept, usually developing between 4 to 8 months. Before this, an infant believes that if they can’t see something, it ceases to exist. Once object permanence is established, they will search for a hidden toy.
  • Language Acquisition: This journey begins with coos and babbles, moves to single words around 12 months, and progresses to simple sentences by age 2-3. It’s a direct reflection of their growing ability to think and form concepts.
  • Symbolic Thought: This emerges around 18 months and is the foundation of pretend play. A child using a banana as a telephone is demonstrating symbolic thought—the ability to make one thing stand for something else.
  • Cause and Effect: From an early age, babies learn that their actions have consequences. Dropping a spoon and watching it fall, or pushing a button to hear a sound, are early experiments in understanding cause and effect.

Quick Revision Points

  • Cognitive development is about how children think, learn, and solve problems.
  • Object permanence is knowing things exist even when out of sight.
  • Symbolic play (pretend play) is a major milestone, showing abstract thought.
  • Language skills progress from sounds to words to simple sentences by age 3.
  • By age 3, a child can typically sort objects and follow multi-step instructions.

Extra Practice Questions

  1. Define “object permanence” in your own words.
  2. Give two examples of symbolic play you might see in a two-year-old.
  3. What is the difference between a one-step and a two-step command? Provide an example of each.
  4. Why is imitating gestures and sounds an important cognitive skill for an infant?
  5. How does sorting objects by color demonstrate cognitive growth?