**Chapter 12- Measure Length and Area**

**Summary**

**12-1 Nonstandard Units:** I can measure lengths using nonstandard units.

**Vocabulary:** Nonstandard unit: objects such as blocks, paper clips, crayons, and pencils that can be used to measure. Measure: to find the length, height, weight, capacity, or temperature using standard or nonstandard units. Length: how long or how far something is.

**12-2 Measure Inches Using Models:** I can measure length using models that approximate inches.

**Vocabulary:** Inch: a customary unit for measuring length and height. 12 inches=1 foot.

**12-3 PSS: Guess and Check:** I can use *guess and check* as a strategy to solve problems.

**12-4 Use an Inch Ruler:** I can estimate and measure length using an inch ruler.

**12-5 Measure Centimeters Using Models:** I can measure length using models that approximate centimeters.

**Vocabulary:** Centimeter: a metric unit of measurement used to find lengths and heights.

**12-6 Use a Centimeter Ruler:** I can estimate and measure length using a centimeter ruler.

**12-7 Understanding Area:** I can determine the area of a two-dimensional surface.

**Vocabulary:** Area: the space inside a shape or figure.

**12-8 PSS: Choose a Strategy:** I can choose the best strategy to solve problems.