A more natural WBT writing technique for math might be the Oral Writing pattern. Every question must be answered with a complete sentence. Then, add an Adder or two and finish with a Concluder. As students become more proficient, they can use because Adders, for example adders, also adders. So, the question might be, "What is the answer to question 4?" Answer: "The answer to question 4 is 19." Because Adder: "The answer is 19 because ... ' For example Adder "For example ... " Also adder, "Also ... " Concluder, "To sum up, ...."