Six sets of area dominoes with whole numbers. Two sets include problems for counting unit cubes, and 4 require multiplication or repeated addition. Half of the sets find the area of rectilinear figures.

These dominoes address the following CCSS:
3.MD.C.5 - Recognize area as an attribute of plane figures and understand concepts of area measurement
3.MD.C.6 - Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised units).
3.MD.C.7 - Relate area to the operations of multiplication and addition.
4.MD.A.3 - Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.

Set-up
These cards will hold up longest if printed on heavy duty paper such as construction paper or card stock. Lamination is optional, but could also extend longevity of each set you make. Sets store well in labeled sandwich baggies or library pockets. Be sure to label each set as there are six versions.

Differentiation
Six versions are included.
Set A finds the area of rectangles by counting unit squares.
Set B finds the area of rectangles by multiplying two single-digit side lengths.
Set C finds the area of rectangles with lager side lengths.
Set D finds the area of rectilinear figures by counting unit cubes.
Set E finds the area of rectilinear figures with smaller side lengths.
Set F finds the area of rectilinear figures with larger side lengths.

These sets could be used simultaneously in class as needed based on individual student needs, or the students can work through them as a progression.

Assessment
An answer key as well as recording sheets for the students have been provided so this could be used as an assessment tool for the teacher, or so students can self-assess as they complete the activity.

Suggestions for Use
As an independent activity - Each student gets a set at their own level, or each starts with Set A and works their way up through Set F.
As a center - Copy as many sets as would be needed for your group sizes, provide guidance on how to play the game and use as a math center activity.
As a game - Works best with pairs, but can accommodate 3 students. Students take turns starting with the start domino, each placing the domino he/she thinks goes next. Once the students agree they have found a sequence that works, they record answers on the answer sheet. Game instructions have been provided for distribution.