Curated OER
Mountain Math Worksheet
In this number sense worksheet, 5th graders solve 37 problems based on a given number. Students are asked to round the number, identify the number as even or odd and add 100 to the number.
Curated OER
Empirical Formulas
In this empirical formulas learning exercise, learners read about determining empirical formulas from chemical formulas. They determine the empirical formula given ten molecular formulas. They also find the molecular formulas given the...
Curated OER
Sieve of Eratosthenes
Students investigate numbers, ways of representing numbers, relationships among numbers and number systems. They comprehend the meaning of operations and how they relate to each other.