Question: how many heaping teaspoons are in a heaping tablespoon?
Answer: A US tablespoon (tbls) is three teaspoons (15mL). In Britain and Australia, for dry ingredients, a 2 rounded or heaped teaspoonful is often specified instead. If you live outside the US, you may not be aware of how teaspoons and tablespoons work (although they are pretty widely used these days).