International Board of Certified Lactation Consultant (IBCLC) Practice Exam

By what age can an infant build a tower of 4 blocks or more?

1. 1-2 months

2. 6-10 months

3. 1-2 years

4. 2-3 years

The correct answer is: 1-2 years

An infant typically develops the fine motor skills and coordination necessary to stack blocks by approximately 1 to 2 years of age. At this stage, children are refining their ability to manipulate objects and gain better control over their hand movements. They begin to experiment with stacking, balance, and spatial awareness, which are crucial abilities for building a tower of four blocks or more. During the earlier stages of development, such as between 1-2 months and 6-10 months, infants are mostly focused on exploring their environment and developing gross motor skills, including grasping and reaching. As they approach their first birthday, they may start practicing simple stacking, but reaching the ability to build a tower of multiple blocks typically occurs after they have turned one year old and solidified more complex motor skills. By the age of 2 to 3 years, children continue to improve their stacking abilities, often building towers with even more blocks. However, the initial development of this skill, specifically building a tower of four blocks, is primarily achieved during the 1-2 year range.