How Many Trains?Give each group Snap Cubes®in two colors. Begin by snapping
one of each color Snap Cube together.Explain that this is a
two-car train because it is made with just two Snap Cubes. Ask
students to find other two-car trains. Studentsshould find that
they can make four differenttwo-car trains with their Snap
Cubes. For example, red-red, green-green, red-green, and
green-red. Point out that in this activity,two trains having the
same color cubes, but arranged in a differentorder, such as
the red-green trains, count as two differenttrains. Have
students trace the cubes to keep track of all of the trains
they are making.
Now,have students find all the three-car trains (trains that
are three cubes long) that can be made using no more than
two colors. Students will need to keep a record as they work
in order to have enough cubes to complete this activity. About Snap Cubes®
Snap Cubes are 3⁄4-inchinterlocking cubes that connect on every
side. They come in sets of 100, 500, and 1000, each containing
an equal amount of 10 differentcolors. A set of 100 cubes is
sufficientfor four to six students.
Activities with Snap Cubes are suitable for children in all grade
levels. They help students learn about whole numbers
(counting, more and less, place value, addition, subtraction),
measurement, probability,graphing, and geometry. They are
ideal for exploring rhythmic patterns as well as growth
patterns, and for doing spatial reasoning tasks.
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