Operation C

Add and subtract fractions with like denominators using models and symbols.

Curriculum Connections

OP C Add and subtract fractions with like denominators using models and symbols
Grade	Curriculum Expectations
2	determine, through investigation using concrete materials, the relationship between the number of fractional parts of a whole and the size of the fractional parts (e.g., a paper plate divided into fourths has larger parts than a paper plate divided into eighths) (Sample problem: Use paper squares to show which is bigger, one half of a square or one fourth of a square.).
2	regroup fractional parts into wholes, using concrete materials (e.g., combine nine fourths to form two wholes and one fourth);
7	use a variety of mental strategies to solve problems involving the addition and subtraction of fractions and decimals;
7	add and subtract fractions with simple like and unlike denominators, using a variety of tools and algorithms;
8	solve problems involving addition, subtraction, multiplication, and division with simple fractions
9D	simplify numerical expressions involving integers and rational numbers, with and without the use of technology;
9P	simplify numerical expressions involving integers and rational numbers, with and without the use of technology;*