Lesson 24 · Equations, Inequalities and Line Graphs

Linear Equations in One Variable

MathematicsSubject

14 minEstimated read

Activity 24.1

What you needTwo envelopes, identical counters such as bottle caps, and a sheet with a line down the middle.

Set it upBuild an equation: three envelopes and five counters on the left, twenty counters on the right.

Now solve it physicallyRemove five counters from each side, split the rest into three equal groups, then open an envelope.

🔐

That's a peek at activity 1 of 4 - sign in for all of them, full length.