The two times tables are usually the quickest to quick to learn and to commit to memory. In fact, random facts should only be done after the child has learned the two, five, ten and squares (2 x 2, 3 x 3, 4 x 4, ...) timestables. A sequence should be followed when getting children to commit the facts to memory. For the two times tables, lots of oral skip counting helps to learn the facts. Skip counting refers to 2, 4, 6, 8, 10, 12 etc. However, when skip counting, don't always start at 2, use a variety of entry points to skip count. Take turns saying them orally, begin at various numbers. For instance, I'll say 4 and the child will say 8, I'll say 2 and the child way say 4, for every number I say, the child must provide the product by multiplying my number by two. You might also find the 100's chart useful for showing the patterns of counting by two. When using the hundred's chart, have the child shade in the multiples (2,4,6,8, 10......) of 2.