A dictionary is a list of words or phrases and their definitions (what they mean). Dictionaries are arranged in alphabetical order. They help you to spell or understand any new words, so are a ...

We have looked at how to solve equations with one unknown value, but what happens when there are two unknown values? An equation with two unknown values will have infinitely many solutions. or \(x=100 ...

For elementary students, math problem-solving often feels like a puzzle without all the pieces. They know there’s a solution somewhere, but they can’t quite see how it all fits together. Behind every ...

1 DFQM, Federal University of São Carlos, Sorocaba, São Paulo, Brazil. 2 Federal University of Alfenas-MG, Poços de Caldas, Minas Gerais, Brazil.