Use repetition and be patient, so that the children do not feel pressured into remembering. Make lessons fun, and incorporate remembering into games. Incorporate counting into skipping, for instance. Encourage the children to sing songs and recite nursery rhymes. Join different methods of learning. For example, the children could recite the nursery rhyme, "Hickory Dickory Dock," draw a mouse and a clock, and learn to tell the time as part of the exercise.
Write simple words, such as "cat," "bat" and "mat" on flash cards. Show the cards to the children. Put the cards away ask the children to tell you orally what the word was. Ask them to write the word down. Tell them to write a sentence with that word in it. Gradually increase the length of the word.
Read story books to the children. The children should recall the previous installment at the beginning of each new session. Use audio book alongside story books as the repetition of the story or nursery rhyme by a different method helps to reinforce memorization.
Teach the children simple times tables. This is a very useful thing to learn by rote, and tends to stay in the child's mind. Write a few basic math and grammar rules and post them on the classroom walls. Repeat these at regular intervals and ask the children to tell you these rules.