Curated OER
In the Path of the Ancients: Unearthing Formulas for Area
High schoolers apply the formulas for the area of parallelograms and triangles. Through guided practice, students discover the correct way to apply the formulas. Working in pairs, they write their own problems featuring the formulas.
Curated OER
Science in History Part I: the Abacus To the Modern Computer
In this math information worksheet, students read one page factual accounts of the early math inventions of the abacus, the calculator and early computers. There are 40 questions to answer about the reading.