How hard would it be to take your American Government and Economics course and design it to cover only Government and Economics, leaving the history out?
Our course should not be changed to omit history from it, and we designed it this way on purpose. The student learns the benefits of a Constitutional Republic and capitalism through the evidence that history has provided us. Also, the text written by Larry Schweikart is so good and unique, that your student may never get the opportunity to read this perspective again. If you have a full year to devote to this topic, then I strongly recommend that your student does not learn Government and Economics separated from the historical experience of the U.S.
Teaching with the Take a Stand! series helps me get to know my children and students better and it helps them how to think critically, form historical judgement, and express themselves in speech and in writing.