During Unit 5, your children will develop an understanding of the meaning and processes of measurement. This includes comparing the lengths of objects when you can put them side by side or using another object to compare the lengths of two objects. For example, using your arms to measure the width of a doorway compared to the width of the refrigerator that you need to move through the doorway. The students will use informal units such as paper clips or tiles to measure the length of an object. They will also learn to tell time to the hour and half hour on a digital and analog clock.
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Your children need to:
- Measure length with nonstandard units (paper clips, toothpicks, unifix cubes, eraser length…) to understand that the length measurement of an object is the number of same-size length units that span it with no gaps or overlaps.
- Order three objects by length.
- Compare the lengths of two objects indirectly by using a third object (concept of transitivity – a is shorter than b and b is shorter than c, so a is shorter than c).
- Use tools to measure time to the hour and half hour intervals
- Apply knowledge of fractional wholes and halves to telling time.
- Compare the same time on analog and digital clocks to measure time to the hour and half hour.
- Gather and collect data to answer questions
- Interpret data contained in picture graphs using a variety of categories with 1:1 intervals
- Collect, organize, display and interpret data using tally charts, picture graphs, bar graphs and tables.