Learning About Ratios: A Sandwich Study


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This lesson introduces students to the concept of ratio through a hands-on, delicious experiment. After an introductory activity where students identify the ratio of girls to boys in a group of 10 selected students, they create six different peanut butter and jelly sandwiches with different ingredient ratios to find which is the tastiest. Students then plan their own similar experiment using other concoctions which can be expressed in ratios.

Learning Registry Activity


    Topics and Grades

    Grade: PS/Pre-K to 12

    Topics: Rates and Proportions, Number Sense, Professional Development

    Resource Pedagogy

    Resource Type/Classification:

    • Teacher Materials

    Tool for: Teachers, Students