To graph a ratio table you turn each row into a point and plot it on a grid. That means reading a coordinate pair and counting over and up. Warm up plotting points and reading tables and the graph just appears.
These are words you'll need to already know to follow this lesson — not the new words the lesson teaches. Review each one, its meaning, and the example so the new lesson makes sense from the start.
Level 1 Two numbers that tell where a point sits on a grid.
Example: The point (3, 2) means go right 3 and up 2.
Level 1 Lines that cross to make squares, used to mark points.
Example: Count over and up on the grid to land on a point.
Level 1 The corner point where the two grid lines cross, at (0, 0).
Example: Always start counting from the origin (0, 0).
Level 1 A line of boxes that goes across a table.
Example: One table row says x = 4 and y = 8.
These check the skills you'll need for this lesson — not the new lesson itself. Answer all 3, then press Show my path. No grade — it just suggests where to start.
1. On a grid, the point (3, 2) means go…?
2. Which point is at the origin (the corner where the lines cross)?
3. A table row says x = 4, y = 8. What is the point?
Vocabulary previewed and basics checked. Time to start the lesson.
Start Lesson 3-3 →