Analyzed by comparing measured before and after the students do question situation, stick figure detects whether help students grammar and comprehension skills.
Through the analysis and comparison of the students' problem-making situation before and after, it is helpful to test whether the sketch is helpful to the students' grammar comprehension and ability to use them.
Through the analysis and comparison of the pre-test and post test students' problem-solving situation, to test whether the simple strokes are helpful to students' grammar comprehension and application ability.