The students are making a great start on our newest math unit: Multiple Towers and Division Stories. An important part of this unit is two-digit multiplication (for example, 56 x 24). We will talk about many strategies for solving these problems. One neat method that students are learning and that may be new to parents is called lattice multiplication. The following videos from Khan Academy offer a very good explanation of lattice multiplication and how it works.
I would also encourage you to spend some time exploring the Khan Academy website. There are excellent explanations of many topics in mathematics, the sciences, the arts, and the humanities. If your student would like to learn new concepts, or practice old ones, there are a myriad of resources on this website.