| Code |
Description |
| MAFS.1.G.1.1: | Distinguish between defining attributes (e.g., triangles are closed and
three-sided) versus non-defining attributes (e.g., color, orientation,
overall size); build and draw shapes to possess defining attributes. |
| MAFS.1.G.1.2: | Compose two-dimensional shapes (rectangles, squares, trapezoids,
triangles, half-circles, and quarter-circles) or three-dimensional shapes
(cubes, right rectangular prisms, right circular cones, and right circular
cylinders) to create a composite shape, and compose new shapes from
the composite shape. |
| MAFS.1.G.1.3: | Partition circles and rectangles into two and four equal shares, describe
the shares using the words halves, fourths, and quarters, and use the
phrases half of, fourth of, and quarter of. Describe the whole as two of,
or four of the shares. Understand for these examples that decomposing
into more equal shares creates smaller shares. |
This cluster includes the following access points.
Vetted resources educators can use to teach the concepts and skills in this topic.
| Name |
Description |
| Shape Sleuths: Trapezoids: | Learn about the defining attributes of trapezoids in this interactive tutorial series about shapes.
Click below to learn about other shapes.
Note: This tutorial uses the definition of trapezoid that includes exactly one pair of parallel sides. |
| Shape Sleuths: Rectangles and Squares: | Help find clues to identify rectangles and squares and their defining attributes in this interactive tutorial. |
| Circus Fun: The Search for Circles: | Learn the attributes, or characteristics, of a circle in this interactive tutorial. |
| Shape Sleuths: Hexagons: | Learn about the defining attributes of hexagons in this interactive tutorial series about shapes.
Click below to learn about other shapes.
|
| Shape Sleuths: Triangles: | Learn about the defining attributes of triangles in this interactive tutorial series about shapes.
Click below to learn about other shapes.
|
| Equal Shares Heroes Find Fourths: | Be a hero and partition circles and rectangles into four equal shares. Describe equal shares using the words "fourths" and "quarters" in this interactive tutorial. |
| Equal Shares Heroes: | Help the heroes separate circles and rectangles into equal shares and describe the equal shares as "halves" or "half of" as you complete this interactive tutorial. |
| Name |
Description |
| Build a New Shape: | Build a New Shape is a lesson for building composite shapes from triangle(s), square(s) and trapezoid(s). This lesson uses a story and certain pattern block manipulative to help students to gain this skill. |
| It's a Piece of Cake...and Pizza: | This lesson focuses only on partitioning circles and rectangles into two equal shares, describing the shares with the word half/halves and half of. Students will be partitioning paper pizzas and cakes to learn the concepts and then building pizzas through a game. |
| Equal Shares at the Zoo? Who Knew!: | In this lesson, students will be partitioning shapes into halves and fourths. The class will get a letter from a zoo requesting their help in solving some problems with designing the layout of animal enclosures. |
| Must or Might: Exploring Defining Attributes of 3-D Figures: | The purpose of this lesson is for students to examine defining and non-defining attributes of 3-dimensional figures. Students compare and contrast various representations of 3-dimensional figures (including real-world objects) to determine what the solid must have, compared to what it might have. This exploration is also supported by sorting 3-dimensional figures. |
| Puzzled by Pattern Blocks!: | In this lesson, the students will use two-dimensional pattern blocks to compose new shapes and fill in composite outlines of shapes. |
| Shape Identifying and Sketching: | In this lesson students will describe attributes of triangles, rectangles, squares, and hexagons and identify these shapes by their attributes. Given the name of one of these shapes, students will use their knowledge of the shape's attributes to represent the shape with a sketch. |
| Halves and Quarters of Circles: | In this lesson, students will learn how to partition circles into halves and quarters/fourths and examine how partitioning a circle into more equal shares creates smaller shares. |
| Life Jackets: | In this MEA the students are to decide what criteria is the most important for a company to consider when choosing life jackets. Students will use data tables of qualitative information to solve the problem. Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. Click here to learn more about MEAs and how they can transform your classroom. |
| Pizza Anyone? Exploring Halves and Fourths/Quarters: | This lesson practices the partitioning a whole to equal shares for halves, fourths, and quarters through pizza and candy bar manipulatives. Students are then challenged to demonstrate how many different ways they can fold a square sticky note into fourths! |
| Halves, Quarters and Fourths: | In this lesson, the students will partition circles and rectangles into halves and fourths in order to gain a solid foundation for fractions. |
| Halves and Fourths: | In this lesson, students will gain experience partitioning rectangle and circles into equal shares of halves and fourths and naming the parts appropriately. |
| Fair Share Picnic: | In this introductory lesson on halves, pairs of students will rotate through math stations to prepare for a picnic. They will use paper materials to represent wholes and partition each whole into halves, using applicable mathematics vocabulary. |
| Who gets the bigger share?: | Use this interactive lesson to help your students learn about fractions by partitioning circles and rectangles into two, three, or equal-sized parts and by using a real life scenario. |
| Being Shapely!: | In this lesson, students will work collaboratively to identify and sketch shapes with defining and non-defining attributes. |
| Fun with Shapes: | In this lesson students explore the composing of new shapes from other two-dimensional shapes. The students will utilize math benchmarks as they analyze math solutions and explain their solutions. Since the lesson uses composing, it is also a good lesson to use to show decomposing (taking a shape apart). |
| Quilt Squares: | Students will use pattern blocks to create a quilt square for the Quick Quilters Society. They will have to consider information on a data chart to help them create their squares. They will have to add up the cost to make their square, too. Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. Click here to learn more about MEAs and how they can transform your classroom. |
| Halves and Fourths: | This lesson uses a discovery approach to exploring the meaning of halves and fourths. The students will utilize math benchmarks as they analyze math solutions and explain their solutions. This lesson also teaches students that they can decompose larger sized parts to make smaller sized parts. |
| Halves and Wholes: | In this lesson, students will gain a foundation for fractions by partitioning circles and rectangles into two equal-sized shares. |
| Composite Creature: | The students will use pattern blocks to build and draw new composite geometric shapes, ultimately using composite shapes to form a creature. |
| I'll Share With You: | This lesson focuses on the beginning understanding of fractions through fair-sharing. Students will partition circles and rectangles into 2 and 4 equal-sized parts and be able to describe these parts using appropriate language such as halves and fourths. |
| A Fourth of That?: | Students will partition circles and rectangles into four equal-sized parts. This is a foundational building block of fractions. Students should also develop an understanding of the idea of the whole. This is part of a series of lessons dealing with the foundation for fractions. The other two lessons are Resource ID 46582 and 46846. Throughout the three lessons the students are creating a Fraction Book. |
| Half of This, A Fourth of That, A Whole Lot of Fun!: | Students will partition circles and rectangles into two and four equal-sized parts. They will also explore and discuss the concept that decomposing into more equal shares creates smaller shares. This is a foundational building block of fractions. Students should also develop an understanding of the idea of the whole. This is part of a series of lessons dealing with the foundation for fractions. The other two lessons are Resource IDs 46582 and 46764. Throughout the three lessons the students are creating a Fraction Book. |
| Half of This?: | Students will partition circles and rectangles into two equal-sized parts. This is a foundational building block of fractions. Students should also develop an understanding of the idea of the whole. This is part of a series of lessons dealing with the foundation for fractions. The other two lessons are Resource ID 46764 and 46846. Throughout the three lessons the students are creating a Fraction Book. |
| Shape Detectives: | In this hands-on lesson, students will become Shape Detectives as they identify the two-dimensional shapes, such as triangles, squares and rectangles, needed to build three-dimensional figures including rectangular prisms, square pyramids and cubes. The students will gain an understanding of how two-dimensional shapes are joined together to form three-dimensional figures as well as creating an edible example! |
Vetted resources students can use to learn the concepts and skills in this topic.
| Title |
Description |
| Shape Sleuths: Trapezoids: | Learn about the defining attributes of trapezoids in this interactive tutorial series about shapes.
Click below to learn about other shapes.
Note: This tutorial uses the definition of trapezoid that includes exactly one pair of parallel sides. |
| Shape Sleuths: Rectangles and Squares: | Help find clues to identify rectangles and squares and their defining attributes in this interactive tutorial. |
| Circus Fun: The Search for Circles: | Learn the attributes, or characteristics, of a circle in this interactive tutorial. |
| Shape Sleuths: Hexagons: | Learn about the defining attributes of hexagons in this interactive tutorial series about shapes.
Click below to learn about other shapes.
|
| Shape Sleuths: Triangles: | Learn about the defining attributes of triangles in this interactive tutorial series about shapes.
Click below to learn about other shapes.
|
| Equal Shares Heroes Find Fourths: | Be a hero and partition circles and rectangles into four equal shares. Describe equal shares using the words "fourths" and "quarters" in this interactive tutorial. |
| Equal Shares Heroes: | Help the heroes separate circles and rectangles into equal shares and describe the equal shares as "halves" or "half of" as you complete this interactive tutorial. |
Vetted resources caregivers can use to help students learn the concepts and skills in this topic.
