What are two acceptable methods for teaching rounding numbers according to the standards?

The selected answer is grounded in effective pedagogical strategies for teaching rounding numbers. Estimating numbers involves assessing the value of numbers to the nearest whole number or specific place value without precise calculation, which is essential for understanding rounding fundamentals. It builds conceptual understanding, enabling students to grasp the significance of rounding in real-world contexts, such as budgeting or estimating distances.

Using compatible numbers, on the other hand, involves adjusting numbers to make calculations easier while still being close to the original values, reinforcing mental math skills and numerical flexibility. Both methods foster an intuitive grasp of rounding concepts, aligning with educational standards that prioritize student understanding and practical application over rote memorization of rules.

The other choices do not emphasize the conceptual approach necessary for mastering rounding. Seeking approximate values through calculators may promote reliance on technology rather than fostering understanding, while exclusive focus on exact calculations or rounding rules fails to cultivate necessary estimation skills.