This study examines the results of lessons which introduced “assertion” in consumer education in a high school homemaking course. The lessons were about problems that could arise and how to solve them. The students were given an imaginary situation in which their school seniors were trying to sell them something in an underhand manner. They were requested to think of their reply to the solicitation from their seniors, and took part in role plays in connection with same. Students who were “assertive” managed the situation well and were not deceived. However, it transpired that “non-assertive students” did not refuse the solicitation clearly and may encounter consumer troubles in the future. Next, I will examine the way that all students can express themselves more assertively.