The teachers need to understand the role memory plays in learning to apply strategies in the classroom. Also, teacher should understand information processing and how memory process information. Firstly, Information inter the memory into sensory register where information store by seeing, hearing or other sensory. It can a great deal of information at one time. By attention, information transfer into working memory where memory keep information for a short while so that we can make sense of it. Our working memory has a very limited capacity.  For example; high light key word, by pointing to crucial items, or by saying, "This is important!" . Encoding information help information stay in long term memory. Long term memory is “where we store our general knowledge about the world”. For example: I know the name of different types of animals; giraffe, gazelle, elephant and so on. Long term memory helps student learn and remember information. It distinguishes between two types of learning: rote leaning and meaningful learning. Meaningful Learning is “cognitive process in which learners relate new information to things they already know”. It is very important because learner make sense and mean of what they learn and then information will stay a long time in their memory. For example; when the learner see the word of “MOONSTAR”, he/she  divide the word into two, moon and star. Those words already store in memory or we can relate mathematics to such commonplace activities as cooking, building a tree house, or throwing a ball. Many strategies we do to help students store memory such as using meaningful learning strategies; visual imagery, elaboration and organization. As those strategies can store information in long term memory, they can retrieve what learner have learned by associations between what they initially learn and what  new information has learned. Remembering depends on context, recall involves reconstruction.