Teks
Math 3.6
Geometry and measurement. The student applies mathematical process standards to analyze attributes of two-dimensional geometric figures to develop generalizations about their properties. The student is expected to:
- (1) classify and sort two- and three-dimensional
figures, including cones, cylinders,
spheres, triangular and rectangular prisms,
and cubes, based
on attributes using formal geometric language;
- (A) use attributes to recognize rhombuses, parallelograms, trapezoids, rectangles, and squares as examples of quadrilaterals and draw examples of quadrilaterals that do not belong to any of these subcategories;
- (B) determine the area of rectangles with whole number side lengths in problems using multiplication related to the number of rows times the number of unit squares in each row;
- (C) decompose composite figures formed by rectangles into non-overlapping rectangles to determine the area of the original figure using the additive property of area; and
- (D) decompose two congruent two-dimensional figures into parts with equal areas and express the area of each part as a unit fraction of the whole and recognize that equal shares of identical wholes need not have the same shape.
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resources for those 'aha' moments
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Regular and Irregular Polygons
Use this teacher-created resource for teaching about regular and irregular polygons.
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2-D Shapes with Information - Poster
A 2-D shapes poster with 16 common shapes, as well as information characterizing each shape.
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Introduction to Area - Instructional Slide Deck
Introduce the concept of area with this 22-slide instructional slide deck.
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Area And Perimeter Task Cards
Practice finding the area and perimeter of shapes with this set of ten word problem task cards.
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2D Shapes Poster Set
Use this set of 16 brightly colored 2D shapes with your geometry lessons.
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Area and Perimeter Word Problems
A collection of 13 area and perimeter word problems with answers.
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Number Talks - Perimeter and Area Task Cards
Build number sense skills with this set of 28 task cards.
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Number Talks - Classifying Figures Task Cards
Build geometric reasoning with this set of 20 task cards.
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Measuring Area Using Arrays
A worksheet to use when exploring the concept of measuring area using arrays.
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2-D Shapes and Their Attributes - Interactive PowerPoint
Practice identifying the attributes of different 2D shapes with this 90-slide interactive PowerPoint.
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Area of 2D Shapes — Poster Set
Use this set of posters to teach how to find the area of 2D shapes.
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Attributes of 3-D Figures - Worksheet
A worksheet for students to practice giving attributes of 3-D figures.
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Real Life 3-D Objects – Interactive PowerPoint
A 30-slide interactive PowerPoint that explores 3-D objects found in real life.
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2D Shapes Poster
Use this colorful poster with a collection of 2D shapes in your math classroom.
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Open-ended Math Problem Solving - Grades 1, 2, and 3 (Task Card Version)
A set of 20 open-ended problem solving task cards covering a range of mathematical concepts.
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2-D and 3-D Shapes Vocabulary Poster
A poster that explains 2-D and 3-D shapes and lists associated vocabulary.
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Attributes of 3-D Figures - Posters
Posters showing and labeling the properties of 3-D figures.
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3-D Figure Profiles – Template
A template that students use to demonstrate their ability to describe the features of 3-D figures.
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Geometry Toss - Active Learning Game
An active game that encourages learning through a physical setting.
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2-D Shapes and 3-D Objects Crossword with Solution
A crossword with clues for both 2-D shapes and 3-D objects.
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Three Little Pigs Area Worksheet
A worksheet to practice finding area using square units.
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What's My Card? Shape Board Game
A set of cards to be used in a Guess Who? Board Game for students to consolidate their knowledge of shape.
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3-D Objects Dominoes
A set of dominoes to help students reinforce their understanding of 3-D figures.
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Open-Ended Math Problem Solving - Grades 1, 2, and 3 (PowerPoint Version)
A PowerPoint with 20 open-ended problem solving questions covering a range of mathematical concepts.
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Garden Design Project
A math project for students to design a public garden for their city
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Individual 3-D Figure Blue Print Posters
3-D figures and their names, diagrams, and attributes on individual posters.
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Individual 2-D Shapes Blue Print – Posters
2-D Shapes and their names, diagrams, and properties on individual posters.
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Individual 3-D Figure Posters - Black and White
A set of 3-D figure posters that include the figure name, illustration, and its attributes.
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Interactive Area Puzzle (Squares and Rectangles)
Find the area of 16 shapes on the board and match the corresponding pieces to reveal a mystery picture.
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Draw a Town with 2-D Shapes
An interactive and evolving resource where students draw 2-D shapes incrementally to create a town map and 3-D figures.
