Educational Activities The Winnipeg School Division No. 1
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Paint - Rounding Off - N-I.4.2 & N-.1.4.4

(Originally from the Inner City Technology Goals Document – June 1997)

Description:
Students learn how to round off numbers using number lines created in Paintbrush.

Math: Yes

TypeLessonPlan: Lesson Plan - 1 class

TechnologySkills: Paintbrush Tools

SoftwareUsed: Paintbrush

EarlyYears: Yes

MiddleYears: Yes

S1-S4:

SpecificGrade:

Submittedby: Glenn Doncaster

E-mail: gdoncast@minet.gov.mb.ca

Details:
Create enough number lines on a paintbrush screen for the numbers your students will be working with. Type a number to the right of each line and how you want each number rounded off. Save the file on a drive that is accessible to all students.

This activity will give the students a visual representation of and practice with rounding off numbers. The students will open Paintbrush and then open the appropriate file. Each student needs to place a marker on the appropriate spot on the given number lines according to the numbers on the right hand side of the number line. To make a marker the students can use the paintbrush tool and a single click in the right spot. Then they need to circle the correct rounding off of each number using the circle tool.

Extensions:  (Literature Links, Further Explorations, etc.)
Have the students fill in the number line numbers themselves. Have students work in groups of 2 giving each oter numbers to represent on a number line.

Give numbers that will require the students to use number lines that are sectioned. e.g. 6789 and the number line will start at 6000 and go to 7000.




Filename:  Mathematics Rounding Off.htm