Solving Problems Using the Four Operations

WHAT?

4.OA.A.3 Solve multi-step contextual problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.

4.NBT.B.4 Fluently add and subtract within 1,000,000 using appropriate strategies and algorithms.

4.MD.A.3 Know and apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.

4.MD.A.2 Solve one- or two-step real world problems involving measurement with all four operations within a single system of measurement including problems.

Generation Genius - Solve 2-Step Problems

https://www.generationgenius.com/?share=884A3

Generation Genius - How to Find Perimeter

https://www.generationgenius.com/?share=5DC1E

Generation Genius - How to Find Area

https://www.generationgenius.com/?share=D82BD

WHY? In this unit students combine competencies from different domains to solve problems using the four operations. Measurement is included in this unit to provide a context for solving problems from all of the problem types in Table 1 and Table 2 at the end of this pacing guide 4.OA.A.3 and 4.NBT.B.4 are repeated here to include all four operations and will be finalized in unit 16. Repeating these standards throughout the year provides students multiple opportunities to develop these skills—which are major areas of focus for this grade level.