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Grade:
ElementarySubject:
Mathematics |

Posted Sun Feb 20 19:55:51 PST 2005 by Amber M. ().

Forest Acres, Easley, SC

Materials Required: Copy of sheet with square/rectangle figures for each student,1 bag of starburst,

Activity Time: 40 minutes

Concepts Taught: area/square units

Grade Level: 2

Subject: Measuring area with square units

Standard-Measurement ID and ID2.1:

Select an appropriate unit and tool for the attribute being measured.

Determine the appropriate unit and instrument needed for area.Objective:

TSW be able to measure area using square units.Procedure:

TTW will explain that area is the amount of space that an object covers and that area is measured in square units.

TTW will have a large square shape drawn on the board.

TTW will have large squares of the same size cut out of colored

construction paper.

TTW will have the students to guess how many colored squares they think it will take to cover the figure drawn on the board.

TTW have a student to cover the figure drawn with the colored squares.

TTW will talk about how many squares it took to cover the figure.

TTW will explain again that area is how much space an object covers and that area is measured in square units.

TTW give the students a copy of a sheet with different sizes of squares and rectangles. Beside each shape will be two blanks; one for estimate and one for actual.

TTW give each student 10 or more starburst depending on how big the shapes are on the sheet.

TTW explain that the starburst can be used as a square unit to determine the area of the shapes drawn.

TSW guess/estimate how many square units it will take to determine the area of each shape.

TSW will record their estimate.

TSW measure the area of the shapes using the starburst as their square unit of measurement.

TSW record the actual number of square units/area.

TSW eat their starbursts when the lesson is complete.Materials:

Copy of sheet with square/rectangle figures for each student

1 bag of starburst

Large squares of different colors cut out of construction paper

Chalk/dry erase marker

Chalboard/dry erase board

PencilAssessment:

Check sheet for correctness and accuracy, teacher observation