Curriculum / Math / 5th Grade / Unit 3: Shapes and Volume / Lesson 11
Math
Unit 3
5th Grade
Lesson 11 of 16
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Lesson Notes
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Classify shapes as polygons versus non-polygons and classify polygons according to their number of sides.
The core standards covered in this lesson
5.G.B.3 — Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles.
5.G.B.4 — Classify two-dimensional figures in a hierarchy based on properties.
The foundational standards covered in this lesson
4.G.A.2 — Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.
The essential concepts students need to demonstrate or understand to achieve the lesson objective
Suggestions for teachers to help them teach this lesson
Aside from the term "hierarchy", students are familiar with all of the vocabulary terms used in Lessons 11-16 from previous grade levels.
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Tasks designed to teach criteria for success of the lesson, and guidance to help draw out student understanding
25-30 minutes
A student sorted a set of shapes into the following 2 categories:
How were the shapes sorted?
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Investigating Quadrilaterals by Jenise Sexton is made available on 101Questions under the CC BY 3.0 license. Accessed Feb. 5, 2018, 12:05 p.m..
Sort the polygons from Anchor Task #1 (cut out from Polygons Template) however you’d like. You can create as many groups as you’d like.
Grade 5, Unit 8, Unit Plan (2016-2017) is made available by Achievement First as a part of their Open Source web portal under a CC BY 4.0 license. Copyright © 1999-2017 Achievement First. Accessed Feb. 6, 2018, 12:55 p.m..
a. Draw a polygon that is a triangle. Explain or show how you know it is a polygon and a triangle.
b. Draw a polygon that is not a triangle. Explain or show how you know it is a polygon but not a triangle.
c. Jamshid says that it is impossible to draw a triangle that is not a polygon. Do you agree with him? Explain or show your reasoning.
15-20 minutes
Problem Set
A task that represents the peak thinking of the lesson - mastery will indicate whether or not objective was achieved
5-10 minutes
Arya draws a figure that is a polygon. Which of the following is true about the figure? There are three correct answers.
When is a polygon also a quadrilateral?
The Extra Practice Problems can be used as additional practice for homework, during an intervention block, etc. Daily Word Problems and Fluency Activities are aligned to the content of the unit but not necessarily to the lesson objective, therefore feel free to use them anytime during your school day.
Extra Practice Problems
Help students strengthen their application and fluency skills with daily word problem practice and content-aligned fluency activities.
Next
Classify quadrilaterals based on the presence or absence of one pair of parallel sides. Define trapezoids as quadrilaterals with at least one pair of parallel sides.
Topic A: Volume of Three-Dimensional Figures
Understand volume as an attribute of solid figures that is measured in cubic units. Find the volume of concrete three-dimensional figures.
Standards
5.MD.C.35.MD.C.4
Find the volume of pictorial three-dimensional figures.
5.MD.C.4
Find the volume of a right rectangular prism by thinking about its layers.
5.MD.C.5
Find the volume of a right rectangular prism using its side lengths.
Represent volume using expressions related to the formulas $$V = b \times h $$ and $$V = l \times w \times h$$. Use these formulas to find the volume of pictorial rectangular prisms.
Understand standard units for measuring volume, including cubic inches, cubic centimeters, cubic feet, and cubic meters. Solve real-world and mathematical problems involving these various units.
5.MD.C.45.MD.C.5.B
Solve more complex real-world and mathematical problems involving volume.
Solve a three-act task involving volume.
Understand that volume is additive. Find the volume of composite solid figures when all dimensions are given and their decomposition is already shown.
5.MD.C.5.C
Understand that volume is additive. Find the volume of composite solid figures when not all dimensions are given and/or they must be decomposed.
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Topic B: Classification of Two-Dimensional Shapes
5.G.B.35.G.B.4
Classify trapezoids based on the presence of one or two sets of parallel sides. Define parallelograms as trapezoids with two sets of parallel sides.
Classify parallelograms based on the presence or absence of right angles or based on the presence or absence of sides of equal length. Define rectangles as parallelograms with four right angles and rhombuses as parallelograms with four equal sides.
Classify rectangles based on the presence or absence of sides of equal length, and classify rhombuses based on the presence or absence of right angles. Define squares as quadrilaterals with sides of equal length and all right angles.
Classify triangles based on side and angle measures.
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