Lesson 3: Graphing Functions

• How do we turn a table into a graph?
• What do the points on a graph tell us?
• Why do function points form a pattern?
• What can we learn from a graph?

Graph, coordinate plane, point, linear, pattern, relationship

CCSS.MATH.8.F.A.3

Description: Students take input/output tables and plot the ordered pairs (input, output) on coordinate planes. They observe that points often form a line or pattern, connecting algebraic and visual representations. Purpose: To help students see the connection between tables, equations, and graphs. DOK Level: 2-3 (Application)

• Step-by-step: Provide tables already converted to ordered pairs first
• For struggling learners: Use only Quadrant I; provide pre-drawn grids with axis labels
• For advanced learners: Include all quadrants; ask them to identify if points form a line
• Color-coding: Use different colors for each point or pair

• Observation: Can students correctly plot points?

• Worksheet: Given a table, plot 5-6 points on a graph

• Reverse task: Given a graph, write the ordered pairs

• Extension: Predict where the next point would be

• Input/output tables (from Lesson 2.2)

• Coordinate plane worksheets

• Ordered pair cards

• Graph paper

• Resource: Desmos "Graphing Functions"