Unit 1

Factores y múltiplos

Unit Goals

Unit Narrative

In this unit, students extend their knowledge of multiplication, division, and the area of a rectangle to deepen their understanding of factors and to learn about multiples.

In grade 3, students learned that they can multiply the two side lengths of a rectangle to find its area, and divide the area by one side length to find the other side length.

To represent these ideas, students used area diagrams, wrote expressions and equations, and learned the terms “factors” and “products.”

Diagram. Rectangle partitioned into 2 rows of 3 of the same size squares.

In this unit, students return to the concept of area...

Section A

Section Goals

Section Narrative

In this section, students revisit the ideas of area and factors from grade 3 and encounter the idea of multiples. They begin by building rectangles given specific side lengths and identifying possible areas when only one side length is known. Students use tiles and diagrams to build their understanding before learning new terminology.

Next, students build rectangles given a certain...

Construyamos algunos rectángulos.

Aprendamos sobre parejas de factores.

Identifiquemos números primos y números compuestos.

Practiquemos la multiplicación.

Section A Practice Problems

to access Section Checkpoints.

Section A

Construyamos algunos rectángulos.

Aprendamos sobre parejas de factores.

Identifiquemos números primos y números compuestos.

Practiquemos la multiplicación.

Section B

Section Goals

Section Narrative

In this section, students apply and deepen their understanding of the ideas of factors and multiples as they play games and solve problems in context. The activities prompt students to look for patterns in factors, multiples, and prime and composite numbers, and use them to make predictions and generalize their observations.

Twenty students are playing a game with 20 lockers...

Resolvamos problemas que estén relacionados con factores y múltiplos.

Descifremos lo que está sucediendo en un juego sobre casilleros.

Encontremos los factores y los múltiplos de números enteros entre 1 y 100.

Hagamos arte con rectángulos.

Section B Practice Problems

to access Section Checkpoints.

Section B

Resolvamos problemas que estén relacionados con factores y múltiplos.

Descifremos lo que está sucediendo en un juego sobre casilleros.

Encontremos los factores y los múltiplos de números enteros entre 1 y 100.

Hagamos arte con rectángulos.

to access End-of-Unit Assessments.

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Factores y múltiplos

Unit Goals

Unit Narrative

Section Goals

Section Narrative

Section A Practice Problems

Section Goals

Section Narrative

Section B Practice Problems

Unit 1 Resources

About Unit 1

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Section Goals

Section Narrative

Section B Practice Problems

Section Goals

Section Narrative

Section A Practice Problems