Integers and Number Line Operations: A Visual Walkthrough

Section role: This presentation supports the 'The Master Number Line: I Do' section, displayed while the teacher directly instructs students on integer concepts and operations using a large number line. Slides: (1) Title — 'What Are Integers?'; (2) What are Integers? — bullets: definition as whole numbers and their opposites, examples of positive and negative numbers, zero as neutral; (3) The Number Line: Our Integer Map — bullets: visual representation of the number line with positive numbers to the right and negative numbers to the left of zero, highlighting zero as the center; (4) The Mirror Rule — bullets: explanation that opposites like -5 and 5 are mirror images across zero, visual examples; (5) Absolute Value: Distance from Zero — bullets: definition of absolute value as the distance a number is from zero, examples: |-3|=3, |7|=7; (6) Adding Integers: Moving Right — bullets: rule for adding a positive number means moving right on the number line, example: (-2) + 5; (7) Subtracting Integers: Moving Left — bullets: rule for subtracting a number means moving left on the number line, example: 3 - 7; (8) Practice: Number Line Jumps — prompt for students to visualize simple operations like 4 + (-6) or -1 - 3. Concrete examples: 3rd floor going down 4 floors, fish 5 meters below water level, (-2) + 5, 3 - 7, -5 and 5 as mirror images. Hooks back to the rest of the lesson: Builds on the real-world scenarios from 'The Do Now Challenge' by providing formal definitions and tools. Sets up the guided practice in 'Jumping Together: We Do & Hinge Questions'. Closing slide: 'Remember: Adding moves right, subtracting moves left. How can we use our number line to solve new problems?'

Lara from Teachy