| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| history of homework in education | 1.84 | 0.1 | 1036 | 11 |
| us history educational software homework help | 1.38 | 0.9 | 8109 | 89 |
| history of homework in america | 1.13 | 0.8 | 2674 | 93 |
| who invented homework history | 1.91 | 0.3 | 330 | 66 |
| when did homework begin | 1.55 | 0.3 | 7730 | 39 |
| when was homework invented and why | 0.11 | 0.1 | 3187 | 47 |
| when was invented homework | 1.71 | 0.2 | 4697 | 84 |
| when was homework created | 0.93 | 0.1 | 1953 | 92 |
| when was homework introduced | 1.56 | 0.7 | 2951 | 40 |
| when did homework become a thing | 0.47 | 0.7 | 9572 | 15 |
| what year was homework invented | 0.7 | 1 | 2389 | 7 |
| how did homework start | 0.94 | 0.7 | 9674 | 15 |
| why was homework originally invented | 1.35 | 0.8 | 7276 | 63 |
| where did homework originate | 0.43 | 1 | 5289 | 81 |
| who invented homework and school | 1.38 | 0.3 | 7557 | 31 |
| when did homework exist | 0.36 | 0.9 | 3085 | 20 |
| who invented school homework | 0.65 | 0.2 | 3229 | 70 |
| american history homework help | 0.75 | 1 | 5468 | 85 |
| american history homework | 1.34 | 0.1 | 8436 | 27 |
| when did homework start | 1.4 | 0.1 | 2684 | 96 |
| where was homework invented | 0.3 | 0.5 | 7258 | 21 |
