Final answer:
An 18-month-old toddler is expected to build a tower of 4-6 blocks, use a spoon (although they might still rotate it), and begin to walk up and down stairs with support. Drawing circles and climbing stairs independently are milestones usually achieved by age three.
Step-by-step explanation:
A developmental screening for an 18-month-old toddler should include assessment of various skills to ensure they are reaching appropriate milestones for their age. At 18 months, a child should be able to exhibit certain developmental abilities.
Based on the developmental milestones, an 18-month-old should be able to:
Build a tower with 4-6 blocks, reflecting their fine motor skills.
Throw a ball but not necessarily with an overhead throw since their gross motor skills are still developing.
Use a spoon fairly well, though with some rotation as their coordination is still maturing.
They should be starting to walk up and down stairs with support, showcasing their growing gross motor skills.
Drawing circles and walking up and down stairs independently are skills that typically develop closer to the age of three years. Thus, these tasks may not be consistently performable by an 18-month-old.