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Estimation Jars

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  • DOMAIN(S)
    Cognitive Development and General Knowledge (CD)
  • INDICATOR(S)
    CD-CP3.4b, CD-MA7.3a, CD-MA7.4a
  • AGE GROUP(S)
    36-48 months, 48-60 months

Place several small items such as bottle caps in a jar. This will be your mystery jar. Using the same item, provide an opportunity for the children to watch you place 10 bottle caps in a matching jar. Count aloud and make sure the number is more or less than the amount in the mystery jar. Encourage the children to compare the number of caps in both jars and estimate how many caps are in the mystery jar. Remind them there are 10 in the second jar. Change the number of items in the counting jar and continue to encourage the children to compare and estimate the amount in the mystery jar.

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