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second grade Archives - MARILYN BURNS MATH

AdditionDo The MathGeneral InterestInterviews One-on-OneListening to LearnMath and LiteratureNumber and OperationsNumerical ReasoningPlace Value

A Children’s Book, Differentiating Math Instruction, and More

I love incorporating children’s books into math lessons. Since most of my teaching focuses on math, it’s a treat for me to read a book aloud to a class. After the students have a chance to enjoy the story and respond to the illustrations, then I use the book as a springboard for a math lesson.
Marilyn Burns
August 31, 2021
General InterestNumber and OperationsNumerical ReasoningSubtraction

Why I Like Using Open Number Lines (Though I Don’t Like the Name)

This post is about subtraction, which is typically difficult for students to learn and for teachers to teach. Think about 503 – 398, for example. To estimate the answer, I can change the problem to 500 – 400 (rounding 503 to 500 and 398 to 400). That gives me an estimate of 100, which I know is close. But how can I know if the actual answer to 503 – 398 is greater or less than 100? I raised this question with third graders.
Marilyn Burns
February 25, 2015