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This Warm-up prompts students to compare four images. It gives students a reason to use language precisely (MP6). It gives the teacher an opportunity to hear how students use terminology to talk about characteristics of the items in comparison to one another. During the discussion, ask students to explain the meaning of any terms they use, such as “partes”, “pedazos”, “unidad”, “figuras”, “triángulo”, “cuadrilátero” o “mitades” // “parts,” “pieces,” “whole,” “shapes,” “triangle,” “quadrilateral,” or “halves.”
¿Cuáles 3 van juntas?
The purpose of an Estimation Exploration is to practice the skill of estimating a reasonable answer, based on experience and known information. In this activity, students estimate what fraction of a square is shaded to revisit area diagrams.
¿Qué fracción del cuadrado está sombreada?
Escribe una estimación que sea:
| muy baja | razonable | muy alta |
|---|---|---|
The purpose of this activity is for students to use their experience with fraction strips and tape diagrams to estimate what fraction of a strip is shaded.
¿Qué fracción de la tira está sombreada?
Escribe una estimación que sea:
| muy baja | razonable | muy alta |
|---|---|---|
¿Qué número está representado por el punto en la recta numérica?
Escribe una estimación que sea:
| muy baja | razonable | muy alta |
|---|---|---|
Display the number line from the last activity.
“Hoy practicamos nuestras habilidades para estimar con fracciones que estaban presentadas de distintas formas. Cuando estimaron la ubicación de este punto en la recta numérica, ¿qué cosas supieron inmediatamente?” // “Today we practiced our estimation skills, with fractions shown in different ways. When you were estimating the location of this point on the number line, what were some things you knew right away?” (The fraction would be greater than 1 and less than 2. The numerator had to be larger than the denominator. I could write it as 1 and a fraction. It would be closer to 1 than to 2.)
“¿En qué cosas tuvieron que esforzarse un poco más?” // “What did you have to work a little harder to figure out?” (What denominator to use in my estimate because no parts are marked on the number line. What fraction would be greater than 1 but less than .)