Final answer:
Felipe's love for lining up his cars and trucks by size demonstrates his understanding of proportion, classification, and sorting.
Step-by-step explanation:
Felipe's love for lining up his cars and trucks by size demonstrates his understanding of proportion. Proportion refers to the size relationship between parts of a whole or between different objects. By organizing his toy vehicles based on size, Felipe is actively comparing and arranging them according to their proportions.
This activity also involves concepts of classification and sorting. Felipe is categorizing his cars and trucks based on their shared property of size and ordering them from smallest to largest, forming a scale dimension.
Overall, Felipe's interest in lining up his cars and trucks by size showcases his comprehension of mathematical concepts like proportion, classification, and sorting.