Section 13.1 Activities

Variables, Expressions, and Equations

Simple Plot	Students can plot ordered pairs of numbers, either as a scatter plot or with the dots connected.
Graph Sketcher	Students can create graphs of functions by entering formulas -- similar to a graphing calculator.
Graphit	Students can graph functions and sets of ordered pairs on the same coordinate plane -- similar to a graphing calculator.
Function Machine	Students investigate very simple functions by trying to guess the algebraic form from inputs and outputs.
Linear Function Machine	Students investigate linear functions by trying to guess the slope and intercept from inputs and outputs.
Positive Linear Function Machine	Students investigate linear functions with positive slopes by trying to guess the slope and intercept from inputs and outputs.