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- 4.MD.C.5Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement:
- 4.MD.C.6Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.
- 4.MD.C.7Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in real world and mathematical problems, e.g., by using an equation with a symbol for the unknown angle measure.

Angle and line art

4th Grade Math

» Unit:

Geometry

Big Idea:In this lesson, students create a unique art project by reviewing important geometric terms.

Angles and Pattern Blocks

4th Grade Math

» Unit:

Geometry

Big Idea:In this lesson, students work with a partner and pattern blocks to discover angle measurements and properties.

Math and Art Collide - Using Protractors

4th Grade Math

» Unit:

Geometry

Big Idea:In this creative lesson art and math collide. Students add to a previously completed art project in order to measure angles using a protractor.

Mini Golf Mystery - Using a Protractor

4th Grade Math

» Unit:

Geometry

Big Idea:In this lesson, students create angles on a mini golf course in order to practice using a protractor.

Practice with Protractors

4th Grade Math

» Unit:

Geometry

Big Idea:In this direct instructional approach lesson, students practice using a protractor to measure various sized angles.

Angle Assessment

4th Grade Math

» Unit:

Geometry

Big Idea:In this lesson, students complete a summative assessment to show proficiency in measuring and drawing angles, as well as their proficiency with understanding angles as additive.

Rainbow of Angles!

4th Grade Math

» Unit:

Geometry

Big Idea:In this lesson, students use fraction circles and an interactive smart board program to explore angle measurements as part of 360 degrees of circles.

Drawing Angles

4th Grade Math

» Unit:

Geometry

Big Idea:In this direct instruction lesson, students use a protractor to draw angles specified.

Adding up Angles

4th Grade Math

» Unit:

Geometry

Big Idea:In this lesson, students are up and out of their seats in an engaging problem solving strategy. Students deepen their understanding about angles as they talk with peers about various strategies to determine angle measurements.

Little Bears Vest - A lesson on Symmetry

4th Grade Math

» Unit:

Geometry

Big Idea:In this partner work lesson, student work with pattern blocks and their creativity to design a shape pattern that has at least one line of symmetry. Students also find the fractional value of each shape and calculate in order to calculate the total value

Clay Creations - Modeling Angles

4th Grade Math

» Unit:

Geometry

Big Idea:In this hands on engaging lesson, students use clay to make a miniature golf model all while deepening their understanding of creating angles. They then use their skills to draw angles using a protractor.

What's The Point!

4th Grade Math

» Unit:

The Road to Angles, Points, and Turns!

Big Idea:Students always ask what's the point! After discussing the relationship among points, students will use what the know to identify the given point.

What's the Point Part 2

4th Grade Math

» Unit:

The Road to Angles, Points, and Turns!

Big Idea:Students often want to understand why points are made, using what they learned about points students discover, and analyze the relationship between points and angles.

Types of Triangles

4th Grade Math

» Unit:

Geometry

Big Idea:Students will classify triangles into groups and will later determine the attributes of different triangle types.

4.MD.C.5a

An angle is measured with reference to a circle with its center at the common endpoint of the rays, by considering the fraction of the circular arc between the points where the two rays intersect the circle. An angle that turns through 1/360 of a circle is called a “one-degree angle,” and can be used to measure angles.

4.MD.C.5b

An angle that turns through n one-degree angles is said to have an angle measure of n degrees.