3rd Grade Math Centers

Measurement and Data

3MD.C5.b. A plane figure which can be covered without gaps or overlaps by n unit squares is said to

have an area of n square units.

Find the Area 352

Area on the Geoboard 355

3.MD.C.6Measure areas by counting unit squares (square cm, square m, square in, square ft, and

improvised units).

Cover Your Notebook 356

Measuring Objects in Square Centimeters 358

Rectangleswith Color Tiles 359

Area Compare 360

3.MD.C.7a. Find the area of a rectangle with wholeRelate area to the operations of multiplication and addition.-number side lengths by tiling it, and show that the area is the

same as would be found by multiplying the side lengths.

Find the Area of a Rectangle 363

Complete the Rectangle (ver. 2) 364

b. Multiply side lengths to find areas of rectangles with whole-number side lengths in the context of

solving real world and mathematical problems, and represent whole-number products as rectangular

areas in mathematical reasoning.

WordProblems: Area 367

c. Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths a

and b + c is the sum of axband axc. Use area models to represent the distributive property in

mathematical reasoning.

Build Rectangles of Two Colors 372

Jack’s Rectangles 373

d. Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-

overlapping rectangles and adding the areas of the non-overlapping parts, applying this technique to

solve real world problems.

Three Rectangles 376

Find Areas of Rectilinear Figures (ver. 1) Find Areas of Rectilinear Figures (ver. 2) (^379383)
Design a Flower Bed 387
Geometric measurement: recognize perimeter as an attribute of plane figures and distinguish
between linear and area measures
3.MD.D.8Solve real world and mathematical problems involving perimeters of polygons, including
finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles
with the same perimeter and different areas or with the same area and different perimeters.
Squares on a Geoboard 388
Perimeter on the Geoboard 390
MeasuringPerimeter with Color Tiles Perimeter (^392396)
The Perimeter Stays the Same 397
The Area Stays the Same 398
Rectangular Robot 399
Design a Rabbit Enclosure Word Problems: Perimeter 401400

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