45x21x12cm wooden box containing 1cm thick wooden squares of different sizes and colors. CD containing a wide range of activities included. This box complements with Numerical Rods (Ref.ARDI8950) and Numerical Cubes (Ref.ARDI8952) boxes.
This box contains all the diversity of square plates representing the squares of the first ten natural numbers with the same color as the corresponding simple rods.
Work the notion of square product of two equal numbers, and also as a number.
See the relationship between the word and the geometry of the square numbers, expressing their own dimension.
Observe the fact that consecutive squares grow more than members of series of natural numbers.
Familiarize with the numerical knowledge of the square numbers.
- From the multiplication table, built with rods, observe the diagonal and make the first presentation of the squares.
- Build the square of a number, repeating the rod of this number as many times as it has units. Observe the product obtained. Comment if the outcome of any number will be square shaped or not.
- Replace with the corresponding square plate of the squares box.
- Learn to name the square correctly: it's best to start with the expression "square of 7" as they will later use "7 squared".
- Learn the correct spelling. The square of 8, is written as 8². Medium cycle students, have no difficulty with this new symbol.
- Memorize the squares of the first ten numbers (which is part of memorizing the multiplication table) and, if possible, 11 and 12. This will facilitate mental arithmetic.
- Take some rods of 1 (eg 30) and place them on the table, in a square shape, first spontaneously and finally in an organized manner (there is an example in the activities package).
- Compare squares with other products of two factors answering questions like "Which should be bigger?", To help to estimate the value of the square.
- Imagine squares of numbers larger than those memorized, making an estimation. Example: In a sqaure space of 24 chairs long and 24 wide, you think you could fit 900 people. How did you thought that?
- Compare with rods, the series of numbers from 1 to 10, with the first ten squares, and see that they do not grow one to one, but much faster.
- Comparison activities of squares 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.