3.MD.C.5a
MATH.CONTENT-Measurement & Data-Grade 3
A square with side length 1 unit, called “a unit square,” is said to have “one square unit” of area, and can be used to measure area.
NEW PROFESSIONAL DEVELOPMENT BOOK: Simplify Your Writing Instruction
MATH.CONTENT-Measurement & Data-Grade 3
A square with side length 1 unit, called “a unit square,” is said to have “one square unit” of area, and can be used to measure area.