1. Present simple tense: Used throughout the answer (e.g., "I believe," "kids are naturally curious") to express general truths and opinions, which is appropriate for IELTS Speaking Part 3.
2. Complex sentences: The answer uses complex sentences with clauses (e.g., "even as soon as they can hold a crayon, which is usually around two or three years old") to add detail and explanation.
3. Not only... but also: This structure ("not only sparks creativity but also helps develop fine motor skills and hand-eye coordination") is a great way to show a range of benefits and connect ideas smoothly.
4. Infinitive of purpose: "to encourage their development" shows purpose, which is a useful structure for explaining reasons or benefits.