Mystery Jars
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Description
For this activity, the instructor prepares two mystery jars of identical size, one filled with smaller objects, one with larger objects. Students are asked to record their estimates of the number of objects in each jar on the downloadable recording sheet and explain their reasoning. Students are encouraged to understand the difference between guessing and estimating. Suggested discussion questions are included.
Learning Registry Activity
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Topics and Grades
Grade: TK/K to 6
Topics: Estimation & Rounding, Inquiry & Problem Based Learning, Number Sense, Area & Volume, Professional Development, Mathematics, Counting & Place Values, Measurement & Tools, Education, Child Development & Family Services
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Matched Standards
Resource Pedagogy
Resource Type/Classification:
- Teacher Materials
Tool for: Teachers