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K-5 Grado 4 Unit 3 Lesson 10

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

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Lesson 1 Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 Lesson 9 •Lesson 10 Lesson 11 Lesson 12 Lesson 13 Lesson 14 Lesson 15 Lesson 16 Lesson 17 Lesson 18 Lesson 19 Lesson 20

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

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Lesson 10

Warm-up Activity 1 Activity 2

Unit 3, Lesson 10

Los números de una resta

Grado 4

Warm-up

Conversación numérica: Grupos de doceavos

Encuentra mentalmente el valor de cada expresión.

Activity 1

¿Cuánto quedaría?

Una jarra contiene jugo de sandía. Si sirviéramos las siguientes cantidades, ¿cuántas tazas de jugo quedarían en la jarra? En cada caso, la jarra contiene 3 tazas de jugo de sandía al comienzo.
1. de taza
2. tazas
3. tazas
4. tazas
Otra jarra contiene agua. Si sirviéramos las siguientes cantidades, ¿cuántas tazas de jugo quedarían en la jarra? En cada caso, la jarra contiene 4 tazas de agua al comienzo.
Explica o muestra tu razonamiento. Si te ayuda, usa diagramas o ecuaciones.
1. de taza
2. tazas
3. tazas

Activity 2

Clasificación de tarjetas: Doceavos

Tu profesor te va a dar varias tarjetas que muestran fracciones y expresiones con fracciones.

Clasifica las tarjetas en dos categorías que tengan sentido para ti. Prepárate para explicar el significado de tus categorías.
Encuentra el valor de cada diferencia. Muestra tu razonamiento.

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Standards Alignment

Building On

4.NF.4.b

Understand a multiple of a/b as a multiple of 1/b, and use this understanding to multiply a fraction by a whole number. For example, use a visual fraction model to express 3 × (2/5) as 6 × (1/5), recognizing this product as 6/5. (In general, n × (a/b) = (n × a)/b.)

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Standards Alignment

Building On

4.NF.3.a

Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.

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Addressing

4.NF.3.c

Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.

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4.NF.3.d

Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem.

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Standards Alignment

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Addressing

4.NF.4.c

Solve word problems involving multiplication of a fraction by a whole number, e.g., by using visual fraction models and equations to represent the problem. For example, if each person at a party will eat 3/8 of a pound of roast beef, and there will be 5 people at the party, how many pounds of roast beef will be needed? Between what two whole numbers does your answer lie?

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