Stop the confusion between "adding" and "multiplying" probabilities just in time for state testing!This Simple vs. Compound Probability Anchor Chart is the perfect visual reference to help 7th grade students distinguish between ONE event (Simple) and TWO+ events (Compound). With testing season (STAAR, SOL, etc.) right around the corner, students often mix up when to add outcomes (the "OR" rule) and when to multiply independent events (the "AND" rule). This poster fixes that by putting them si