Indiana University Indiana University IU
1
2
3
4
5
1-3
4-6
Lesson 2
6
4-7
Lesson 3
1-2
3-4
5-6
Lesson 4
2-3
4-5
1-4
Lesson 5
Lesson 6
Lesson 7
3-5
6-7
Lesson 8
Lesson 9
7
8
9