Includes introductory 5E lesson plan for adding/subtracting fractions with like denominators, independent task card practice activity, fraction pizza craftivity, and extension lesson for estimating sums and differences.

4th grade MATH Texas Essential Knowledge and Skills

4.3 Number and operations. The student applies mathematical process standards to represent and generate fractions to solve problems. The student is expected to:

4.3(A) represent a fraction a/b as a sum of fractions 1/b, where a and b are whole numbers and b > 0, including when a > b

4.3(B) decompose a fraction in more than one way into a sum of fractions with the same denominator using concrete and pictorial models and recording results with symbolic representations

4.3(C) determine if two given fractions are equivalent using a variety of methods

4.3(E) represent and solve addition and subtraction of fractions with equal denominators using objects and pictorial models that build to the number line and properties of operations.

4.3F evaluate the reasonableness of sums and differences of fractions using benchmark fractions 0, 1/4, 1/2, 3/4 and 1, referring to the same whole