by Kim Cheeks

Intro/Motivation:

Make a number line on the overhead and have students count by 100s, while writing the numbers on the overhead.

Activity (Procedure):

Put song up with number line.(copy found at end of lesson) Sing the march to students have them sing with you after you model it.

Then have students practice together rounding numbers 256, 874,521,419.

Then explain rules of the game “Rounding” the Room. (copy found at end of lesson).

Place numbers (hundreds) on the desks before you have them get started.

ROUNDING MARCH

Rounding numbers is so fun,

We will do it ’till we’re done.

If a number’s 0-4,

Round it down to the hundred before.

If a number’s 5-9,

Round it up the number line.

Round up,

Round down,

1,2,3,4

(1-2, 3-4!)

“ROUNDING” THE ROOM

The teacher will place numbers on the floor(room) face down in a pile. The students will select a number and then round it to the nearest hundred. They will then move to the desk with that hundred on it. For example if I drew the number 567 I would move to the table or desk with 600 on it and then sit down. You can make this competitive but I didn’t and the students still enjoyed it and had plenty of practice rounding.

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Angela Moore

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