Original Promptanchor chart or info page for virginia math standard - a) Estimate and determine the sum or difference of two fractions (proper or improper) and/or
mixed numbers, having like denominators limited to 2, 3, 4, 5, 6, 8, 10, and 12 (e.g., ⅜ + ⅜ , 2 ⅕ + ⅘ , 7/4 - 5/4) and simplify the resulting fraction. Addition and subtraction with fractions may
include regrouping.
This resource focuses on adding and subtracting fractions and mixed numbers with like denominators, targeting estimation, addition, and subtraction skills. The learning objective is for students to estimate, add, and subtract fractions using basic rules and regrouping techniques. Section 1 introduces estimation techniques using benchmarks (close to 0, 1/2, or 1) and demonstrates basic addition of fractions. Section 2 covers rules for subtraction, including how to manage improper fractions and regrouping them into mixed numbers. The resource includes worked examples, faded practice, and independent problem-solving tasks for students to work through, as well as error analysis to help them understand common mistakes. In essence, it aims to provide comprehensive support for mastering the addition and subtraction of fractions.