Which statement correctly describes the math problem-solving routine used in EC-3?

Which statement correctly describes the math problem-solving routine used in EC-3?

• A. Understand-Plan-Solve-Check is used with mental math only.
• B. Work through problems by scanning, solving, checking.
• C. Plan before understanding how to solve.
• D. Understand-Plan-Solve-Check with teacher modeling, guided practice, independent work, and reflection.

Answer: (D)

Understanding a problem, planning a strategy, solving it, and checking the result is the problem-solving sequence used in EC-3 math instruction. This approach is taught with a gradual release model: the teacher first models thinking aloud so students see how to approach a problem, then provides guided practice with support, followed by independent work, and finally reflection to deepen understanding and self-monitoring. Why this fits the EC-3 context is that it explicitly guides young learners through each step: grasp what the problem asks, decide how to approach it, carry out the plan, and verify the answer. The addition of teacher modeling, guided practice, independent work, and reflection ensures students see examples, practice with scaffolds, apply on their own, and think about what worked and what didn’t, which strengthens both skill and confidence. The other options miss essential parts of the routine or place steps in the wrong order. Scanning, solving, and checking omit the planning and the initial deep understanding. Planning before understanding reverses the natural flow of figuring out what the problem is about. Limiting the routine to mental math excludes the important instructional supports and the concrete practice that EC-3 relies on.

Understanding a problem, planning a strategy, solving it, and checking the result is the problem-solving sequence used in EC-3 math instruction. This approach is taught with a gradual release model: the teacher first models thinking aloud so students see how to approach a problem, then provides guided practice with support, followed by independent work, and finally reflection to deepen understanding and self-monitoring.

Why this fits the EC-3 context is that it explicitly guides young learners through each step: grasp what the problem asks, decide how to approach it, carry out the plan, and verify the answer. The addition of teacher modeling, guided practice, independent work, and reflection ensures students see examples, practice with scaffolds, apply on their own, and think about what worked and what didn’t, which strengthens both skill and confidence.

The other options miss essential parts of the routine or place steps in the wrong order. Scanning, solving, and checking omit the planning and the initial deep understanding. Planning before understanding reverses the natural flow of figuring out what the problem is about. Limiting the routine to mental math excludes the important instructional supports and the concrete practice that EC-3 relies on.