Ms. Dorr's 4th Grade Classroom
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Polygons: Size, Shape & Symmetry


Measurement 

LEQ: When are estimated and exact measurements needed?
Khan Academy Measuring Different Lengths
LEQ: How do we determine what unit of measure to use when measuring lengths?
LEQ: How do we find the perimeter of a polygon?
Perimeter Shape Game
Splash Math Perimeter Games

Find the Missing Length - Perimeter
Area & Perimeter of Rectangles
​

khan academy perimeter
Important vocabulary: area, volume, perimeter, linear, measurement, inch, foot, yard, centimeter, meter, benchmark, millimeter, standard system, metric system, kilometer, estimate

Polygons

LEQ: What is a polygon?
LEQ: How can we describe and classify polygons?

Polygon Identification Game
Polygon or Not
Polygon Match 
Game​
​

LEQ: How can shapes be combined to make new polygons?
​

Important vocabulary: polygon, line segment, end point, vertex, orientation, trapezoid, equilateral triangle, parallelogram, hexagon, prefix, side, angle, right angle, parallel, perpendicular, quadrilateral, square, rectangle, attribute

Angles

LEQ: What is a right angle?
LEQ: How can we measure angles?
Types of Angles Game
​

khan academy types of angles
khan academy recognizing angles
Important vocabulary: angle, degree, right angle, acute angle, obtuse angle

Area

LEQ: How can we find the area of polygons?
​Important vocabulary: symmetrical, square unit, pentagon

Symmetry

LEQ: How can we determine lines of symmetry?
Making Lines of Symmetry
Symmetry Matching


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  • Home
  • O11 Info
    • About Ms. Dorr
    • Daily Schedule
    • Grading Policy
    • Dazzling Dorr Club
    • Monthly Calendars
    • Lunch Menu
  • Math
    • Number Forms
    • Multiplication & Division
    • Polygons
    • Fractions
    • Smarter Balanced Preparation
  • Reading
    • The Witches >
      • Green Screen Creations
    • Who Is Jeff Kinney?
    • Wax Museum
    • Sadako
  • Writing
    • Spooky Story Narratives
    • Winter Wonderland Narratives
    • Tsunami Informative Reports
  • Science
    • Structures of Life
    • Magnetism & Electricity
    • Land and Water
  • More
    • Common Core Standards
    • Helpful References
    • Schoology
    • Clever Log In
    • AR Book Finder
    • AR Quiz Log In
    • Lexia
    • PEG Writing
    • Dreambox
    • Front Row Math
    • XtraMath
    • Frontier
    • Typing Practice
    • UDLib Search