2.3 Measuring Length
Unit Goals
- Students measure and estimate lengths in standard units and solve measurement story problems within 100.
Section A Goals
- Measure length in centimeters and meters.
- Represent and solve one-step story problems within 100.
Section B Goals
- Measure length in feet and inches.
- Represent and solve one- and two-step story problems within 100.
Section C Goals
- Represent numerical data on a line plot.
Glossary Entries
- bar graphA way to show how many in each group or category using the length of rectangles.
- centimeter
A length unit in the metric measurement system. There are 100 centimeters in a meter.
- composeTo make a new unit from 10 of the next smallest unit. For example, compose a ten from 10 ones.
- dataInformation about the things or people in a group.
Example: If you have a box of colored pencils, then the lengths and colors of each of the pencils are data about the pencils in the box. - decomposeTo break a unit into 10 of the next smallest unit. For example, decompose a ten into 10 ones.
- foot
A length unit in the U.S. customary measurement system.
There are 12 inches in a foot.
- inch
A length unit in the U.S. customary measurement system.
There are 12 inches in a foot.
- line plotA way to show how many of each measurement using an x for each measurement.
- meter
A length unit in the metric measurement system.
There are 100 centimeters in a meter.
- picture graphA way to show how many in each group or category using pictures of the objects or symbols.