Final answer:
The Oldowan Complex included tools like choppers, cobbles, and flakes, mainly used for chopping and scraping. These were simpler and more rudimentary than the later Acheulean hand-axes, which were more sophisticated and symmetrical bifaces.
Step-by-step explanation:
The Oldowan Complex includes tools like choppers, cobbles, and flakes. These early stone tools are characterized by their simple design and were the predominant technology until about 1.7 million years ago, when they were superseded by the more sophisticated Acheulean tools. The Oldowan tools were created using hard hammer percussion to chip away at a stone's surface, producing a "core". This core served as a basic tool for various activities such as cutting meat and plants. In contrast, Acheulean hand-axes represented an advancement in toolmaking, featuring a teardrop shape, thinner and sharper edges, and requiring more refined techniques for their creation, such as the soft hammer technique.
While hand-axes were a significant part of Acheulean technology, they were not included in the Oldowan toolset. Acheulean hand-axes were symmetrical bifaces, showing an increase in cognitive ability and motor skills in their makers. In comparison, Oldowan tools were more rudimentary, designed mainly for chopping and scraping but lacking the symmetrical and bifacial qualities of later Acheulean hand-axes.