Everyday Math Grade 4 – Lesson 1.3 Part 1: Angles Copyright © 2010 Kelly Mott
Math Boxes Lesson 1.3
Copyright © 2010 Kelly Mott Math Box 1:
Copyright © 2010 Kelly Mott Math Box 2:
Copyright © 2010 Kelly Mott Math Box 3:
Copyright © 2010 Kelly Mott Math Box 4:
Copyright © 2010 Kelly Mott Math Box 5:
Copyright © 2010 Kelly Mott REVIEW
A __________ is a location in space that is usually marked with a dot. Z 1.Line 2.Line segment 3.Point 4.Ray Copyright © 2010 Kelly Mott
A __________ is made up of a set of points and continues without end in both directions. 1.Line 2.Line segment 3.Point 4.Ray Copyright © 2010 Kelly Mott
A __________ straight path that has a starting point and goes forever in one direction. 1.Line 2.Line segment 3.Point 4.Ray Copyright © 2010 Kelly Mott
A __________ is made up of 2 points with a straight path between them. 1.Line 2.Line segment 3.Point 4.Ray Copyright © 2010 Kelly Mott
__________or ______________________________ Copyright © 2010 Kelly Mott Name the Line, Line Segment, or Ray QRWX
__________or _________ Copyright © 2010 Kelly Mott Name the Line, Line Segment, or Ray EFG LM
Copyright © 2010 Kelly Mott
Lesson 1.3 Part 1 Skill: Angles
Part 1: What are angles? Copyright © 2010 Kelly Mott
What are angles? Copyright © 2010 Kelly Mott
An angle is made up of ___ rays or ___ line segments that share an endpoint. The point that is shared is called the vertex. Label the vertex above. Copyright © 2010 Kelly Mott What is an angle?
Draw an angle made up of two rays and label the vertex. Draw an angle made up of two line segments and label the vertex. Copyright © 2010 Kelly Mott Draw an Angle
Part 2: How do you name an angle? Copyright © 2010 Kelly Mott
An angle can be named 2 ways. It can be named by its vertex. It can be named by its 3 points. (The vertex must be in the middle.) Copyright © 2010 Kelly Mott How do you name an angle? A B C D E F
Names: 1.___________________ 2.___________________ 3.___________________ H G I Name the Angles 1 E D F Names: 1.___________________ 2.___________________ 3.___________________ J K L Copyright © 2010 Kelly Mott
Names: 1.___________________ 2.___________________ 3.___________________ N M O Name the Angles 2 E D F Names: 1.___________________ 2.___________________ 3.___________________ P Q R Copyright © 2010 Kelly Mott
Names: 1.___________________ 2.___________________ 3.___________________ TSU Name the Angles 3 E D F Names: 1.___________________ 2.___________________ 3.___________________ V WX Copyright © 2010 Kelly Mott
Names: 1.___________________ 2.___________________ 3.___________________ BA C Name the Angles 4 E D F Names: 1.___________________ 2.___________________ 3.___________________ D E F Copyright © 2010 Kelly Mott
Part 3: Types of Angles Copyright © 2010 Kelly Mott
What types of angles are there? Copyright © 2010 Kelly Mott
A protractor is used to measure angles. Angles can be classified into types according to what they measure. Copyright © 2010 Kelly Mott Types of Angles
A _______________ angle measures 90 degrees. Copyright © 2010 Kelly Mott Types of Angles
f Circle the Right Angles Copyright © 2010 Kelly Mott
An _______________ angle measures less than 90 degrees. Copyright © 2010 Kelly Mott Types of Angles
f Circle the Acute Angles Copyright © 2010 Kelly Mott
An _______________ angle measures more than 90 and less than 180. Copyright © 2010 Kelly Mott Types of Angles
f Copyright © 2010 Kelly Mott Circle the Obtuse Angles
A _______________ angle 180 degrees. Copyright © 2010 Kelly Mott Types of Angles
f Copyright © 2010 Kelly Mott Circle the Straight Angles
Part 4: Angle Type Review Copyright © 2010 Kelly Mott
A B C Name the Angle Copyright © 2010 Kelly Mott Right Angle 90 degrees
Copyright © 2010 Kelly Mott Name the Angle Acute Angle Less than 90 degrees
Copyright © 2010 Kelly Mott Name the Angle Obtuse Angle Greater than 90 degrees and less than 180 degrees
Copyright © 2010 Kelly Mott Name the Angle Straight Angle 180 degrees
Part 5: Angle Challenge Copyright © 2010 Kelly Mott
Write how many and name the angles: How many right angles? _____________________ How many acute angles? _____________________ How many obtuse angles? _____________________ A BC Angle Challenge Copyright © 2010 Kelly Mott
Write how many and name the angles: How many right angles? _____________________ How many acute angles? _____________________ How many obtuse angles? _____________________ A BC D Copyright © 2010 Kelly Mott Angle Challenge
Write how many and name the angles: How many right angles? _____________________ How many acute angles? _____________________ How many obtuse angles? _____________________ A BC D Copyright © 2010 Kelly Mott Angle Challenge
Write how many and name the angles: How many right angles? _____________________ How many acute angles? _____________________ How many obtuse angles? _____________________ A BC D Copyright © 2010 Kelly Mott Angle Challenge
Part 6: BRAIN POP - ANGLES Copyright © 2010 Kelly Mott
BRAIN POP Video: eometryandmeasurement/angles / Quiz: eometryandmeasurement/angles /quiz/ Copyright © 20010Kelly Mott
Copyright © 2010 Kelly Mott
Does this make sense? Copyright © 2010 Kelly Mott
HOMEWORK Everyday Math Journal Page: 6 Copyright © 20010Kelly Mott
Copyright © 2010 Kelly Mott HOMEWORK
Copyright © 2010 Kelly Mott HOMEWORK
Copyright © 2010 Kelly Mott HOMEWORK
Copyright © 2010 Kelly Mott HOMEWORK
Copyright © 2010 Kelly Mott