Pennsylvania Department of Education
Associative Properties
Students investigate the associative property of addition. In this associative property of addition activity, students work in pairs and build addition problems with six blocks. They sit on either side of a desk so that they can "read"...
Curated OER
Math Mania
Fifth graders review adding, subtracting, multiplication and division of fractions and decimals through a variety of activities and exercises.
Curated OER
Divisibility Rules
Eighth graders explore Excel and discover rules of divisibility for the numbers 2, 3, 4, 5, 6, 9, and 10; students examine multiples of 2 using pencil/ paper, then create a chart in Excel that will allow them to more easily see patterns...
Curated OER
Fickled Fractions
Students explore which fractions are made real in our world. They also show the relationship of cross multiplication and equivalent fractions To reinforce fraction skills.