Colored Bead Bars: Construction of a Square

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Age

6-9.

Materials

  • Box of colored bead bars 1-10
  • One each of the squares 1-10

Preparation


Presentation

  1. Directress says to the child; "Let's try to multiply all of the numbers by themselves".
  2. During this activity the child writes the equations as he goes along.
  3. He may also draw this on graph paper as he progresses or when he is finished.
  4. Start with one. directress says: "One taken one time is one".
  5. Put out one bead.
  6. Write down 1 x 1 = 1.
  7. Directress says; "Two taken two times is four."
  8. Place two 2- bars in a column next to one.
  9. Write down 2 x 2 = 4.
  10. Continue in this manner until 10 x 10, resulting in 9 columns in a row.
  11. If the child doesn't remember a combination he may check Chart I.
  12. Directress says; "We have multiplied all the numbers by themselves. What have we formed? Squares. Because these are only bars, we can substitute them with the real squares".
  13. "With one, there is no square because 1 x 1 is just 1".
  14. Replace the 2 bars of 2 with the 2 square and so one up to 10.

Control Of Error


Points Of Interest


Purpose

Direct Aim:

  • To help the child in the memorization of multiplication.
  • To help the child in the realization that a number taken by itself makes a square.

Indirect Aim:

  • Preparation for the powers of numbers.

Variation


Links


Handouts/Attachments