This paper presents a method that makes use of temporal patterns, called memory chronicles, that can be found in ob jects’ memories to enhance any pervasive environment with the ability of task recognition. When a user interacts with this environment to achieve some goal ac- cording to a plan, this ability increases the real-time environment aware- ness of which user task in the plan is currently on-going. That up-to- date and contextual knowledge is very useful to bring pertinent help to the user and to make his activity easier. We define the underlying concepts under the approach and we illustrate it in the context of the smart kitchen, which aims at helping the cook in realizing recipes.