Standard:
Classify two-dimensional figures into categories based on their properties.
CCSS.MATH.CONTENT.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.
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.
Overview:
Using Quadrilateral Quest, students can practice their knowledge of attributes of quadrilaterals after they have a whole class lesson, exploration and discussion of quadrilaterals.
Using Quadrilateral Quest, students can practice their knowledge of attributes of quadrilaterals after they have a whole class lesson, exploration and discussion of quadrilaterals.
Classroom Activity:
Begin whole class instruction with an open sort, first and then a closed sort of quadrilaterals and non-quadrilaterals. Students will work in pairs to be able to decided and discuss why they want to place the quadrilaterals into different categories and describe why they had sorted the shapes into different categories (each with different attributes). Still with their partners, then describe why they sorted the shapes into which of the two categories (quadrilaterals and non-quadrilaterals) with the closed sort.
Bring the whole class back together with a whole class share out and discussion of what they think are attributes that compose a quadrilateral: straight lines, 4 sides, 4 angles, closed figure, 2-dimensional.
Introduce different quadrilaterals, first using the parallelogram. Use a large paper cut out of a parallelogram and hold it up for students and ask for a description, using math language. Continue with asking about a rectangle, rhombus and square using large paper cut outs of these quadrilaterals. Students will give a variety of answers, but you should emphasize and focus on vocabulary including sides (parallel, congruent) and angles (congruent and right).
Tell the class that it is important that we compare the sides to determine whether or not opposite sides are parallel and/or congruent, as this will help them determine the type of quadrilateral they are dealing with. The same goes with angles, you want to tell students to compare the opposite angles and determine whether or not they are congruent or right to classify the type of quadrilateral.
Introduce different quadrilaterals, first using the parallelogram. Use a large paper cut out of a parallelogram and hold it up for students and ask for a description, using math language. Continue with asking about a rectangle, rhombus and square using large paper cut outs of these quadrilaterals. Students will give a variety of answers, but you should emphasize and focus on vocabulary including sides (parallel, congruent) and angles (congruent and right).
Tell the class that it is important that we compare the sides to determine whether or not opposite sides are parallel and/or congruent, as this will help them determine the type of quadrilateral they are dealing with. The same goes with angles, you want to tell students to compare the opposite angles and determine whether or not they are congruent or right to classify the type of quadrilateral.
Introduce Quadrilateral Quest to students and allow them to explore the sort on their own at
http://teams.lacoe.edu/documentation/classrooms/amy/geometry/3-4/activities/quad_quest/quad_quest.html
There are multiple quests for students to go on:
The online activity gives a list of attributes of quadrilaterals that they are looking for. The activity will give them a green light when they move a correct quadrilateral in the "drop shapes here" box and a red light if they move an incorrect quadrilateral in the "drop shapes here" box.
Green light (correct quadrilateral):
Green light (correct quadrilateral):
Red light (incorrect quadrilateral):
Resources:
McGraw-Hill Education- My Math Grade 5 (Teachers Edition)
