# Rounding Mountain

8-10 yrs old

Math & Economics

Students will learn to use the rounding mountain method to help them visualize rounding.

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Submitted By: Joe Beasley

August 20, 2018

#### Skills

• Project Based Learning

### External References

Rounding Mountain Introduction

### Learning Objectives

• The student will round whole numbers, 9,999 or less, to the nearest ten, hundred, and thousand.

### Guiding Ideas

How do you know if a number should round up or stay the same?

### Student Activities

1. Introduce the lesson with video: Number Rock Rounding Mountain.

2. After watching video have students create their own rounding mountain on paper.

3. Give students numbers such as 3,390, 552, and 6,675. Ask students to show if their numbers would round up or down to the nearest ones, tens, hundreds and thousands. Make sure they prove their answers.

4. Give students their own individual number and let students create their own rounding mountain in Minecraft. Students can be creative and prove that their number would either round up or rest depending on what the teacher wants the student to round their numbers to.

5. Students could use minecarts and blocks to show if their number would go over rounding mountain or stay the same.

Optional: This lesson can be adapted for older students who may have to round to the nearest decimal place.

### Performance Expectations

This lesson is to spark discussion and have the students demonstrate their knowledge of rounding whole numbers.

#### Skills

• Project Based Learning

### External References

Rounding Mountain Introduction