Cut-Out Fraction Circles 1–4 (C351) introduce the concept of fractional parts through hands-on, proportional pieces representing wholes, halves, thirds, and fourths, making them ideal for early fraction work in the lower elementary environment. The physical act of assembling and comparing the pieces gives children a concrete reference point before any abstract notation is introduced. These are particularly useful as a first fraction material or for children who need additional sensorial anchoring before moving to labeled work.