2.4 Sumemos y restemos en la recta numérica
Unit Goals
- Students learn about the structure of a number line and use it to represent numbers within 100. They also relate addition and subtraction to length and represent the operations on the number line.
Section A Goals
- Represent whole numbers within 100 as lengths from 0 on a number line.
- Understand the structure of the number line.
Section B Goals
- Represent sums and differences on a number line.
Lessons
- 7
La suma y la resta en la recta numérica
- 8
Ecuaciones en una recta numérica
PLC Activity
- 9
La diferencia entre números
- 10
El valor posicional y la recta numérica
- 11
Distintas formas de sumar y de restar
- 12
Ecuaciones con números desconocidos
- 13
Representemos problemas-historia
- 14
Día 2 de centros (optional)
- 15
Acertijos (optional)