“Man, I didn’t do nothing,” students often said to me when I spoke with them about their behavior. “My point exactly,” I replied. “If you didn’t do nothing, you must have done something.” It was after ...

Add and subtract within 100 using compose, decompose, and place value strategies. Engage with a number talk to sum near-doubles using compensation. Add and subtract within 100 in more than one way.

Students will learn how to add, subtract, multiply, divide, and simplify with integers. Welcome to Integers 101! Students will learn how to add, subtract, multiply, divide, and simplify with ...

Write the numbers in a vertical list, lining up the decimal points. If the numbers have a different amount of digits, there may be some gaps in the columns. Fill in any gaps with a zero so that each ...

Whether we're writing, building or cooking, human beings are driven by a powerful instinct to add rather than subtract, a new study suggests. Researchers from the University of Virginia asked 1,585 ...