El Mapa de los Múltiplos y los Criterios de Divisibilidad: Guía Visual

Section role: supports the formal explanation section while the teacher introduces the core definitions and rules on the board. Slides: (1) Title — 'El Mapa de los Múltiplos y el Secreto de los Divisores'; (2) ¿Qué es un múltiplo? — bullets: definition as the result of multiplying by an integer, visual example showing 4x1=4 and 4x2=8 building on the jumping frog analogy from Section 1; (3) ¿Qué es un divisor? — bullets: definition as a number that divides another leaving zero remainder, example 10 ÷ 2 = 5; (4) La relación binaria — bullets: explanation that if 15 is a multiple of 5, then 5 is a divisor of 15; (5) Regla de divisibilidad por 2 — bullets: rule that the number must end in an even digit (0, 2, 4, 6, 8), example 24; (6) Regla de divisibilidad por 5 — bullets: rule that the number must end in 0 or 5, example 35; (7) Regla de divisibilidad por 10 — bullets: rule that the number must end in 0, example 50; (8) Ejemplo guiado con el número 20 — bullets: step-by-step analysis testing 20 against divisibility by 2, 5, and 10; (9) Reflexión sobre el uno y la identidad — bullets: answering whether a number can be its own multiple and divisor, highlighting that 1 is the divisor of all numbers; (10) Closing slide: '¿Puede un número primo ser divisible por 2, 5 o 10?' — hands control back to the teacher to set up the practice activities in Section 3.

Lara de Teachy