Step up or step down to rounding. Using a vertical number line, the lesson shows pupils the significance of rounding up or rounding down. Teachers encourage scholars to write the number in unit form and decide which form helped the most in determining where to round. The resource is the seventh in a series of 18 on decimals.

Concepts

decimal place value, decimals, rounding decimals, decimal points, rounding, rounding numbers

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Additional Tags

math

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Instructional Ideas

• Bring in a ladder to represent the vertical number line and help demonstrate rounding up or rounding down

Classroom Considerations

• Requires the class to know how to write a number in unit form
• Learners should be familiar with the rules of rounding for whole numbers

Pros

• Contains notes to the teacher about different aspects of the lesson
• Includes sample responses to in-class practice

Cons

• None

Common Core

MP6 5.NBT.A.4