Question

Differentiate between Core tools and Flake tools?

Answer 1

Core tools were made by chipping and shaping large stones. They were usually pear-shaped with sharp edges, like hand axes which were held in the hand and used to cut trees, dig the earth, and shape sticks. Some of these have been found in South India. 
Flake tools were tools made from smaller pieces of stone and were used as choppers and cleavers to chop meat and skin animals. 

The first image is a collection of core tools.
The second image is a collection of flake tools, also called flake implements. 

Answer 2

Core tools-A core is a device used in casting and moulding processes to produce internal cavities and reentrant angles. The core is normally a disposable item that is destroyed to get it out of the piece.[1] They are most commonly used in sand casting, but are also used in injection moulding.
Flake tools- In archaeology a flake tool is a type of stone tool that was used during the Stone Age that was created by striking a flake from a prepared stone core. People during prehistoric times often preferred these flake tools as compared to other tools because these tools were often easily made, could be made to be extremely sharp and could easily be repaired. Flake tools could be sharpened by retouch to create scrapers or burins. These tools were either made by flaking off small particles of flint or by breaking off a large piece and using that as a tool itself. These tools were able to be made by this "chipping" away effect due to the natural characteristic of stone. Stone is able to break apart when struck near the edge. Flake tools are created through flint knapping.