This Problem Set is a part of the Lesson 14, Unit 1, Grade 3. In this lesson, students draw arrays and tape diagrams to represent multiplication situations, and then skip count to find the total. For example, they represent 4 × 10 as an array with 10 rows of 4 dots, or a tape diagram with 10 sections and each section representing 4. This lesson focuses on multiplication involving units of 4 in order to build fluency with those facts.