Algebraic Relationships and One-Step Equations

Grade 4 algebra extends equations to all four operations and introduces algebraic relationships: the idea that two quantities are connected by a rule. Planning a camping trip requires equations: if 4 people share costs equally and the total is $148, how much each? 148/4=n. If each person needs 3 meals per day and the trip is 5 days, total meals = 4x3x5. These real planning contexts give equations immediate, practical purpose.