| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| cathy duffy logic of english | 1.98 | 0.4 | 7319 | 58 |
| logic of english foundations cathy duffy | 1.78 | 0.8 | 3340 | 91 |
| cathy duffy implications of literature | 0.19 | 1 | 8568 | 30 |
| cathy duffy reviews spelling | 1.64 | 0.1 | 8216 | 64 |
| cathy duffy easy grammar | 0.2 | 0.8 | 6604 | 63 |
| cathy duffy teaching textbooks | 0.35 | 0.1 | 6177 | 1 |
| language arts cathy duffy | 0.76 | 1 | 3847 | 4 |
| cathy duffy essentials in writing | 1.78 | 0.7 | 8495 | 56 |
| cathy duffy reviews foreign language | 0.39 | 0.8 | 3594 | 50 |
| cathy duffy writing with skill | 1.36 | 0.4 | 7996 | 21 |
| cathy duffy computer science | 0.04 | 0.3 | 1111 | 82 |
| cathy duffy reviews easy grammar | 1.89 | 0.7 | 2236 | 93 |
| cathy duffy reviews teaching textbooks | 0.16 | 0.2 | 3727 | 44 |
| cathy duffy reviews essentials in writing | 0.19 | 0.6 | 4069 | 24 |
| writing curriculum cathy duffy | 0.96 | 0.8 | 1371 | 20 |
| cathy duffy reviews history | 0.74 | 0.8 | 5734 | 75 |
| cathy duffy spelling curriculum | 1.16 | 0.3 | 3534 | 14 |
| cathy duffy lit guides | 0.77 | 0.3 | 6244 | 48 |
| cathy duffy reviews online curriculum | 1.54 | 0.5 | 8405 | 70 |
| cathy duffy friendly biology | 0.39 | 0.1 | 8329 | 97 |
| cathy duffy reviews math | 0.52 | 1 | 8883 | 3 |
| total language plus cathy duffy | 0.71 | 1 | 9328 | 16 |
