Curated OER
Number Patterns
An easy way to introduce numerical patterns, these activities can be made simpler by using addition, or more difficult with division, fractions, and percentages. Children examine patterns and determine the missing number in the sequence....
Curated OER
Percentages: Fractions and Decimals
Second graders convert fractions to percentages. In this interactive whiteboard percentages lesson, 2nd graders problem solve using percentages, fractions, and decimals.
Curated OER
Subtraction
Students explore subtraction. In this mathematics lesson, students practice how to subtract numbers from 20, 100 and other whole numbers. Students realize that there are number bonds which can help with subtraction like 3 and 17 bonds to...