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Algoritmo Basado en Números (ABN)

Aprendizaje de la Resta

Juan Manuel Garrán Barea
L/O/G/O
j u anm ag arran @ g m ai l ....
Consideraciones
Operación difícil de entender por la
existencia de cuatro situaciones distintas

1

Detracción: A – B = X
...
Formatos para la resta
Detracción
A una cantidad, quitar una
indicada y contar lo que
nos queda.

“En una pastelería se ha...
ESCALERA
ASCENDENTE
QUIERO
LLEGAR
AQUÍ

25 + 40
65 + 5
70 + 4

74 - 25
SUMO

65
70
74

DIFERENCIA

ESCALERA
DESCENDENTE

7...
Secuenciación
Ver: FASES
del

CÁLCULO
MENTAL
(Sara Herrera)

Secuencia de materiales

Palillos
Palillos y rejilla

Rejilla...
Patrones de restas
Redondeo y compensación
Doble resta
Pedro tiene 9 €, y gasta 3 € en cromos
y 2 € en chuches. ¿Cuánto le queda?

3
-2

9 - 3
74 + 63 - 2
6
0
-2
0
4...
En una caja hay 50 galletas, Luís se come 12
y se su hermana 14. ¿Cuántas galletas quedan?

-10
- 10
-6

50 - 12
74 + 63 -...
Sumirresta
Manuel tiene 4 €, su abuela le da 3 €
y se gasta 5 €. ¿Cuánto le queda?

4
-5

4
74++ 3 - 5
63
0
7
-5
0
0
2
Manuel tiene 94 €, su abuela le da 23 €
y se gasta 48 €. ¿Cuánto le queda?

-40
-5
22

94 + 23
74 + 63 - 45
54 23
-5
0
50 ...
Muchas gracias
Juan Manuel Garrán Barea
L/O/G/O
j u anm ag arran @ g m ai l .co m
www.themegallery.com
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Aprendizaje de la resta ABN

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Aprendizaje de la resta con el método ABN

Publicada em: Educação, Diversão e humor
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Aprendizaje de la resta ABN

  1. 1. Algoritmo Basado en Números (ABN) Aprendizaje de la Resta Juan Manuel Garrán Barea L/O/G/O j u anm ag arran @ g m ai l .co m www.themegallery.com
  2. 2. Consideraciones Operación difícil de entender por la existencia de cuatro situaciones distintas 1 Detracción: A – B = X 2 E. Ascendente: A + X = C 3 E. Descendente: A – X = C 4 Comparación: A – B = C
  3. 3. Formatos para la resta Detracción A una cantidad, quitar una indicada y contar lo que nos queda. “En una pastelería se han elaborado 437 bollos de los que se han vendido, por la mañana, 248. ¿Cuántos bollos quedarán para la tarde?”. Se parte de una cantidad a la que hay que quitar para llegar a otra. E. Descendente E. Ascendente Se parte de una cantidad a la que hay que añadir para llegar a otra. - Cuando empezaron el partido había 6 niños jugando y cuando acabaron había 12. ¿Cuántos niños se añadieron al juego? - En un cesto María ha recogido 8 manzanas y su hermano Pepe 5. ¿Cuántas manzanas tienen que recoger Pepe para tener las mismas que María? Hay que buscar en cuanto una cantidad es mayor o menor que otra. En una cesta verde hay 8 manzanas y en otra roja hay 5. ¿Cuántas manzanas tenemos que quitar de la cesta verde para tener las mismas que en la roja?. Comparación Juan ha realizado una torre de 214 piezas y Pedro otra de 156. ¿Cuántas piezas más ha usado Juan que Pedro?
  4. 4. ESCALERA ASCENDENTE QUIERO LLEGAR AQUÍ 25 + 40 65 + 5 70 + 4 74 - 25 SUMO 65 70 74 DIFERENCIA ESCALERA DESCENDENTE 74 - 25 74 - 25 AÑADO QUITO QUEDA 40 5 4 49 40 65 4 70 74 5 49 40 34 5 30 25 4 49 QUIERO LLEGAR AQUÍ 74 - 40 34 - 4 30 - 5 DIFERENCIA
  5. 5. Secuenciación Ver: FASES del CÁLCULO MENTAL (Sara Herrera) Secuencia de materiales Palillos Palillos y rejilla Rejilla y palillos Rejilla y símbolos Sólo rejilla
  6. 6. Patrones de restas
  7. 7. Redondeo y compensación
  8. 8. Doble resta Pedro tiene 9 €, y gasta 3 € en cromos y 2 € en chuches. ¿Cuánto le queda? 3 -2 9 - 3 74 + 63 - 2 6 0 -2 0 4 0
  9. 9. En una caja hay 50 galletas, Luís se come 12 y se su hermana 14. ¿Cuántas galletas quedan? -10 - 10 -6 50 - 12 74 + 63 - 14 40 - 2 - 14 -4 30 - 2 24 0 0
  10. 10. Sumirresta Manuel tiene 4 €, su abuela le da 3 € y se gasta 5 €. ¿Cuánto le queda? 4 -5 4 74++ 3 - 5 63 0 7 -5 0 0 2
  11. 11. Manuel tiene 94 €, su abuela le da 23 € y se gasta 48 €. ¿Cuánto le queda? -40 -5 22 94 + 23 74 + 63 - 45 54 23 -5 0 50 22 72 0 0
  12. 12. Muchas gracias Juan Manuel Garrán Barea L/O/G/O j u anm ag arran @ g m ai l .co m www.themegallery.com

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