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Blogs on Math Teaching
Tag Archives: subtraction
Squares of Differences II: Changing Direction
[Note: this is a continuation to the first Squares of Differences post. Read that before continuing.] A week after introducing her class to squares of differences (see for the first post on this lesson), one of Katherine’s students walked in … Continue reading
Posted in classes, game, lesson, link, photo, video
Tagged addition, algebra, differences, Lessons, squares of differences, subtraction
5 Comments
Squares of Differences: subtraction practice toward a greater purpose
Here is a phenomenal lesson, accessible to any child who knows how to subtract, and compelling to everyone, up to and including professional mathematicians. Get a kid engaged in it, and they’ll do hundreds of subtraction problems without complaint, because … Continue reading
Posted in classes, game, lesson
Tagged conjectures, critical thinking, lesson plans, Lessons, practice, questions, skills, squares of differences, subtraction, zeroes
6 Comments
Dice War: A dice game for addition math facts (plus milkshakes)
A new student of mine invented two dice games last week, and I think they’re both fun to play and mathematically relevant. Plus, don’t you want to share when your kids get prolific? So here’s the first. Dice war is … Continue reading
Posted in photo, regular, Uncategorized
Tagged addition, addition facts, Dice, dice games, dice war, greater than, less than, milkshakes, subtraction
5 Comments
