4th grade art . brown, Circle patterns ~ rotational symmetry 4th grade students learn the term "rotational symmetry" in their math class, so for. Silhouette cameo blade problemsand mat - globug ideas, Okay, so i sound like the proverbial broken record, but i’m still having blade problems with my silhouette cameo. it’s such a love-hate relationship!. Craft ideas occasion, skill level, Craft ideas and projects for every skill level, every medium and every occasion..