认知目标：了解墨西哥地理和气候、国花
Get to know the geography, climate and national flower of Mexico.
技能目标：通过了解不同形状的仙人掌，学习运用不同的形状组合表现仙人掌
Use different graphic combinations to draw cactuses.
情感目标：团结，创意思维
Unity & Creativity