End "Sign Confusion" Forever with this 3-Second Visual Hack!Does it feel like your students understand the math but constantly lose points because they "forgot the negative sign"? Memorizing rules like "a negative times a negative is a positive" often fails students under the stress of a test. That’s why I created the Secret Sign Triangle. This "manual calculator" is a visual anchor that students can use to doodle in the margin of any worksheet, ensuring the sign is correct every single time