• Topics covered in Unit 4: Measurement

     

    bar graph

     

    • I can use mathematical language to describe measurement.
    • I can compare objects using two or more characteristics (attributes).

    • I can use standard and non-standard tools for measurement.

    • Four-year-olds are able to apply size words such as big and small, short and tall to label objects and experiences in their environment. They are now able to compare objects using terms such as “heavier” or “longest.” They still confuse terms as they are expanding their vocabulary, stating “I am 45 pounds tall.”

      Examples:

      1. picks up two rocks and determines which one is heavier and which one is lighter

      2. looks at French fries at lunch, and notices which is longest and which is "really short"

      3. looks at three houses in the block center and says, "This one is the tallest."

      4. uses string to measure the perimeter of the class pumpkin

      5. using unifix cubes to measure the length of objects in the classroom

    • Four-year-olds can consider two or more attributes as they compare objects. They create more specific sets, saying things like “Here are the long, skinny ones and here are the short, fat ones.” They can base comparisons using language big/small, heavy/light, tall/short.

    Examples:

    1. groups objects and says, "These are all big, heavy blocks and these are all little, light blocks

    2. groups children as girls with long pants, girls with short pants, boys with long pants and boys with short pants

    3. says, "The big rocks are heavier than the little rocks."

    4. says, "The thin line is longer than the thick line on my paper."

     

    • Four-year-olds explore measurement using non-standard (paper clips, unifix cubes) and standard (ruler, scale) tools. They make observations about measurement and comment on the length, weight and height of items. 

      Examples:

      1. compares the length of two pretzels by holding them side by side

      2. determines a wet sponge is heavier than a dry sponge by using a balance or scale

      3. orders dolls from smallest to biggest and labels them, "tiny, small, medium, big, giant"

      4. uses measuring cups to fill different containers and says, "This one holds more."