42x34x12cm wooden box containing wooden cubes of different sizes and colors. CD containing a wide range of activities included. This box complements with Numerical Rods (Ref.ARDI8950) and Numerical Squares (Ref.ARDI8951) boxes..
This box contains all the diversity of cubes corresponding to the first ten natural numbers with the same color as the simple rods and squares.
Work the notion of cube as a particular case between the products of three numbers, and worked, when the three numbers are the same.
See the relationship between the word and the geometric shape of the first cubic numbers, expressing their own dimension.
Observe, putting them in line by order of magnitude, the fact that consecutive cubes grow more than members of the series of natural numbers, and more than square.
Familiarize with the numerical knowledge of cubic numbers.
- Build the cubes of several numbers, both with equal rods repeating the appropriate construction for a product of three factors, and assembling the corresponding squares as many times as it has units.
- Note that these special products of three factors are the only ones with the exact form of "cube". Hence its name.
- Replace with the corresponding cubic pieces from the cubes box.
- Learn how to call them properly: soon the students will say "... cubed"; at first, it's preferable to use the term "cube of ....".
- Learn the correct spelling. The cube of 3 is written 3³. Students in higher cycles, have no difficulty with this new symbol.
- Memorize the cubes of some frequently used numbers to speed up mental arithmetic.
- Take a handful of number 1 rods (eg 68 of them) and place them on the table, stacking them in the form of a cube as an organized activity. See if the edge of the cube, which is the number that will define it, has been smaller than we thought (in this case is 4).
- Needless to say that some units are left over. That means that 68 is not a cubic number. Instead, 64 is.
- Imagine the value of some cubes, of higher order than those which they have memorized, making an estimate.
- Compare the series of numbers from 1 to 10 with rods, the first ten squares and cubes; note that the growth rate of cubes is not only much larger than for rods, but also larger than for squares.
- Comparison activities of cubes between them.
Keep away from younger children. For use under adult supervision. Recommended age from 4 years.
Warning!: Not suitable for children under 3 years. Choking hazard due to small parts.