Lesson 13
Día 2 de centros (optional)
Warm-up: Verdadero o falso: ¿Verdaderos o fal... dos? (10 minutes)
Narrative
Launch
- Display one statement.
- “Hagan una señal cuando sepan si la afirmación es verdadera o no, y puedan explicar cómo lo saben” // “Give me a signal when you know whether the statement is true and can explain how you know.”
- 1 minute: quiet think time
Activity
- Share and record answers and strategy.
- Repeat with each statement.
Student Facing
Decide si cada afirmación es verdadera o falsa. Prepárate para explicar tu razonamiento.
- \(2 + 2 + 2 + 2 = 4 + 4\)
- \(2 + 2 + 2 = 3 + 3\)
- \(2 + 2 + 2 + 2 + 2 + 2 = 5 + 5\)
Student Response
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Activity Synthesis
- “¿Cómo pueden explicar su respuesta sin encontrar el valor de ambos lados?” // “How can you explain your answer without finding the value of both sides?”
Activity 1: Centros: Momento de escoger (40 minutes)
Narrative
Required Materials
Materials to Gather
Required Preparation
Gather materials from:
- Write Numbers, Stage 4
- Target Numbers, Stages 6 and 7
- Five in a Row, Stages 7 and 8
- How Close, Stage 4
Launch
- “Ahora van a escoger centros de los que ya conocemos” // “Now you will choose from centers we have already learned.”
- Display the center choices in the student book.
- “Piensen qué les gustaría hacer primero” // “Think about what you would like to do first.”
- 30 seconds: quiet think time
Activity
- Invite students to work at the center of their choice.
- 15–20 minutes: center work time
- “Escojan qué les gustaría hacer ahora” // “Choose what you would like to do next.”
- 15–20 minutes: center work time
- If time allows, have students choose a third center to work on.
Student Facing
Escoge un centro.
Escribe números
Números objetivo
Cinco en línea
¿Qué tan cerca?
Activity Synthesis
- Invite 2-3 students to share their favorite method for adding and subtracting within 1,000.
Lesson Synthesis
Lesson Synthesis
“Este año hemos aprendido mucho sobre la suma y la resta. ¿Cuáles son algunas cosas importantes que debemos recordar sobre la suma y la resta?” // “We have learned a lot about addition and subtraction this year. What are some important things we need to remember about addition and subtraction?”
Share and record responses.
“¿Qué preguntas tienen sobre la suma y la resta?” // “What questions do you have about addition and subtraction?”