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K-5 Grado 3 Unit 1 Lesson 19

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Kínder Grado 1 Grado 2 •Grado 3 Grado 4 Grado 5

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IM K-5 Math
IM 6-8 Math
IM 9-12 Math

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Lesson 19

Warm-up Activity 1 Activity 2

Unit 1, Lesson 19

Resolvamos problemas que incluyen arreglos

Grado 3

Warm-up

Conversación numérica: Un grupo menos

Encuentra mentalmente el valor de cada expresión.

Activity 1

Arreglo de colores

Hay 7 filas. Cada fila tiene 5 crayones. ¿Cuántos crayones hay?

Resuelve este problema. Explica o muestra tu razonamiento.
Representa la situación con un arreglo y con una ecuación de multiplicación. Usa un símbolo para representar el número desconocido en la ecuación.

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Activity 2

Las palmeras de Tyler

En cada problema:

Escribe una ecuación de multiplicación que represente la situación. Usa un símbolo para representar el número desconocido.
Resuelve el problema. Muestra cómo pensaste.

grove of coconut trees.

En México, un campo de palmeras cocoteras tiene 5 filas de palmeras. Cada fila tiene 9 palmeras. ¿Cuántas palmeras hay?
Tyler quiere sembrar palmeras cocoteras en un jardín comunitario de la Florida. Él va a sembrar 2 filas de 4 palmeras.¿Cuántas palmeras sembrará Tyler?

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Standards Alignment

Building On

Addressing

3.OA.7

Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.

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3.OA.9

Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends.

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Building Toward

Standards Alignment

Building On

Addressing

3.OA.1

Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each. For example, describe a context in which a total number of objects can be expressed as 5 × 7.

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3.OA.3

Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

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Standards Alignment

Building On

Addressing

3.OA.3

Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

View Full Standard

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