Metric Capers

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In this outdoor activity, learners measure familiar objects in nature to practice working with the metric system. The goal is for learners to develop their "metric senses" by measuring and estimating in metric units the mass, length, temperature, and volume of familiar objects. Can be adapted into an indoor activity on a rainy day.

Quick Guide

Learning Time:
45 to 60 minutes

Estimated Materials Cost:
$10 - $20 per group of students

Age Range:
Ages 6 - 14

Resource Type:


Materials List (per group of students)

  • kilogram scales
  • gram scales
  • onion bags or mesh bags
  • plastic bags (strong enough to hold one liter of soil)
  • meter tapes
  • rulers, 15-30 cm, preferrably clear plastic
  • liter-containers
  • 250-ml measuring cups
  • buckets of water
  • 1 8-10 liter bucket (optional)
  • Celsius thermometers
  • rulers, 15-30 cm
  • flagging
  • 1 Metric Tools Equipment card (see PDF)
  • 1 sheet of Practic and Caper Cards (see
  • pencils


  • Mathematics
    • Measurement
      • Units of Measurement
      • Size and Scale
      • Systems

Informal Categories

  • Outdoor Activity


To use this activity, learners need to:

  • see
  • be mobile
  • touch

Learning styles supported:

  • Involves teamwork and communication skills
  • Involves hands-on or lab activities


This resource is part of:

Access Rights:

  • Free access



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