Bar Models for Solving Equations

To learn about different types of equations

To represent and solve one-step equations

To solve complex algebraic equations

To understand the history of bar models

By providing a visual representation

By eliminating the need for calculations

By offering multiple solutions

By simplifying the equations

The bars have different values

The bars represent different equations

The bars represent the same equation

The bars are unrelated

Multiply both bars by the same number

Divide both bars by the same number

Subtract the same value from both bars

Add the same value to both bars

11

15

37

26

Subtracting a constant from each part

Breaking the total into equal parts

Multiplying each part by a constant

Adding the same value to each part

5

6

7

8

20

15

10

25

3.5

3

2.5

4

30

25

20

15