A fifth-grade teacher begins a lesson on equivalent fractions. Which activity is most effective for introducing the concept?

Using pattern blocks to model fractions offers a hands-on approach that effectively introduces students to the concept of equivalent fractions. This method allows students to visualize and physically manipulate the fractions, making the abstract concept more concrete. By engaging with the blocks, students can see how different combinations of blocks can represent the same fraction. For example, they might use two small triangles to equal one larger triangle, demonstrating that 2/4 is equivalent to 1/2.

In contrast, discussing money or comparing pictures may provide some understanding, but they do not offer the same level of engagement or tactile learning. Finding equivalent fractions in a fixed time, while it may build speed and recall, doesn’t engrain the conceptual understanding essential for fifth graders. Therefore, using pattern blocks not only captures students’ interest but also supports deeper learning through exploration and interaction.