This Fluency Activity is a part of the Lesson 23, Unit 5, Grade 3. This activity reviews finding equivalent fractions from Lesson 20. Project a square partitioned into 2 parts with 1 part shaded in. Say the shaded fraction. Students working below grade level may enjoy counting fractions more than once-first, with the addition of models (e.g., shading fourths) and then without, gradually increasing speed with each repetition.