Final answer:
Acheulean tools are large handaxes and cleavers created by middle Homo around 1.5 million years ago. These tools were an improvement over the earlier Oldowan tools and were used for cutting, scraping, and chopping tasks.
Step-by-step explanation:
Acheulean tools are the large handaxes and cleavers that were created by middle Homo around 1.5 million years ago. These tools were an improvement over the earlier Oldowan tools and were used for cutting, scraping, and chopping tasks. Acheulean tools are distinct from Oldowan tools because they were modified on both sides, resulting in a symmetrical tool with two faces, also known as a biface.