Math: Saxon is my favorite. It’s not Christian but I still use it and put my own Christian spin on it in the K-3 grades. I fuss a lot about that on my math blog. You can find it and everything else under the sun at Rainbow Resource, the catalog that weighs 600 pounds.
Language: Memoria Press’s writing, grammar and language stuff is just very excellent. These people are really brainy but they make it understandable and within grasp for the student and the teacher. The materials are outstanding but not frustratingly difficult. I love their composition curriculum and it’s the first thing I’ve found that actually teaches your child to write in a structured way rather than all over the place expressing themselves. It’s very God honoring as well.
Before about 3rd grade we focus on math and language formally, and then gradually add in other subjects.
History: This is where we get most of our reading, is in history books that go with our history lessons. I am completely in love with Veritas Press and their history materials. My middle schoolers use their self-paced on-line history classes and they absolutely love them and know more history than I ever did or have. Our 11th grader does their Omnibus curriculum and it has been a huge blessing for him academically and for our relationship. The reading is excellent, tough classics with lots of essays to write. I do this with him, not online. I will start my girls on it year after next. It’s very Biblically sound and has forced me to talk with our high schooler about unpleasant things such as abortion, homosexuality and drugs, because all of those topics are in the classics. It’s fantastic.
Science: Apologia science books are excellent and I use them in all the elementary and high school grades. My children do them on their own because they are written to the student. I just grade the tests starting in high school. Our middle schoolers are doing anatomy this year and we got the activity workbook to go with it and they are constantly doing these fun experiments in the kitchen such as a model of a cell made out of candy. Our high schooler went to Landry camp for a week this past summer to do a week’s worth of biology labs to give him some hand’s on experience in addition to his Apologia course. He will go back for a week this summer for chemistry labs. All of this is extremely God-honoring and creation based. I like Answers in Genesis for extra science books just for enjoyment, to solidify everyone’s worldview about creation around here.
Logic: In high school we begin logic and we suffered through some dry stuff but I found a book I really love call The Fallacy Detective and it’s awesome. I'm not talking about mathematical logic but rather reasoning and forming arguments. Which is just what our teenagers need help solidifying... Right?