Most of us have little trouble working out how many milliliters are in 2.4 liters of water (it's 2,400). But the same can't be said when we're asked how many minutes are in 2.4 hours (it's 144).

Abstract: Emotion recognition has attracted attention in recent years. It is widely used in healthcare, teaching, human-computer interaction, and other fields. Human emotional features are often used ...

Heinemann today announced that California Math Expressions has officially been approved by the California BOE for adoption in ...