## Unit 4.1 Representing and Interpreting Data

**Essential questions:**

• How can you compare two data sets using information from a line plot?

• What does the X represent on a line plot?

• How can you determine the scale that is appropriate when making a line plot?

## Unit 4.2: Identifying Lines, Angles, and Shapes

__• What kind of attributes can be identified in two-dimensional figures?__

**Essential questions:**

• How can you determine if a shape has a line of symmetry?

• What is the difference between an acute and obtuse angle?

• What specific math vocabulary can you use to classify two-dimensional figures?

• What is the difference between a parallel and perpendicular line?

## Unit 4.3: Understanding and Measuring Angles

__• How would you sketch and measure angles using a protractor?__

**Essential questions:**

• Given an equation with an unknown angle, how would you determine its measurement?• How is an arc of a circle related to the degrees of an angle?

* Why is knowing the measurement of angles important in real life?

## Unit 4.4: Problem Solving with Measurement

__• What operations, materials or strategies can be used to solve problems involving: intervals of time, liquid volumes, mass, money, fractions,decimals, or distances?__

**Essential questions:**

• In what ways can you represent time, distance,volume, and mass using appropriate units of measure?

• How can you express measurements given in a larger unit in terms of a smaller unit?