English to Persian (Farsi) Science General / Conversation / Greetings / Letters

The length of existing textbooks was creating a real and unnecessary impediment to student learning. I was condensing and abridging my coverage, but often without a clear rationale for choosing to cover one topic and omit another. My focus on behavior, coupled with a consistent focus on empiricism, helped in this regard—focusing on these themes helped me identify the underlying principles of psychology and separate more essential topics from less essential ones.