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In this activity students are asked to relate the numbers 1- 20 to rectangular shapes. Learners use unit squares or cubes to sort numbers by their 'shapes,' either squares, rectangles or sticks (rectangles of unit width). Ideas for implementation, extension and support are included.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
NRICH
08/05/2011
Some Rights Reserved
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This interactive applet reinforces students' knowledge of the properties of rectangles and gives them a game in which to form and test hypotheses. In a 5x5 grid in which a rectangle has been hidden, students try to fix the location with the fewest number of probes (Note: press 'Start' to hide a different rectangle). Ideas for implementation, extension and support are included along with printable sheets and video clips of classroom testing.

Subject:
Mathematics
Material Type:
Activity/Lab
Interactive
Provider:
NRICH
09/05/2011
Some Rights Reserved
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This activity gives students a chance to visualize a two-dimensional net of a three-dimensional object. Students are shown three views of a decorated cube and a net of six plain squares. They must decorate the net so that it folds to a cube consistent with the views. An interactive applet is provided. Ideas for implementation, extension and support are included along with three printable sheets (pdf).

Subject:
Mathematics
Material Type:
Activity/Lab
Interactive
Provider:
NRICH
12/05/2002
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CC BY-NC
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The objective of this lesson plan is to help students identify and explain quadrilaterals.

Subject:
Elementary Mathematics
Material Type:
Activity/Lab
Assessment
Lecture Notes
Author:
Audrey Tullis
06/16/2021
Conditional Remix & Share Permitted
CC BY-NC
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This lesson focuses on quadrilaterals and attributes in order to classify each shape (parallelogram, rhombus, square, rectangle, and trapezoid). Students will review traits, identify shared traits and names of quadrilaterals, by identifying quadrilaterals in a video story. Then they will show their understanding by creating a quadrilateral story that explains traits and shared traits/names between quadrilaterals.This lesson will take approx 2 math sessions (or approx 120 min.)Thumbnail Image Citation: Bouwhuis, Laura. "Quadrilateral Stories." Canva.com, 11 July 2022, https://www.canva.com/design/DAFGK89WzOM/A_89J6XLB-lNJrcMHjihgg/edit?utm_content=DAFGK89WzOM&utm_campaign=designshare&utm_medium=link2&utm_source=sharebutton

Subject:
Elementary Mathematics
Material Type:
Assessment
Lesson Plan
Nearpod
Author:
Laura
07/11/2022
Some Rights Reserved
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This activity gives students an opportunity to use and develop their visualizing skills in conjunction with the knowledge of fractions. Students are given one large rectangle that is divided into ten smaller quadrilaterals and triangles in which they have to find what fractional part is represented by each of the ten numbered shapes. The Teachers' Notes page offers suggestions for implementation, discussion questions, ideas for extension and support.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
NRICH
03/05/2001
Some Rights Reserved
Rating
0.0 stars

In this activity students try to visualize 3-D shapes from given 2-D silhouettes (projections). Students can describe, draw, model or relate their ideas to objects in their environment. With several possible answers for each silhouette, students become more familiar with using the terms and describing the properties of solid figures. The Teachers' Notes page includes suggestions for implementation, discussion questions, ideas for extension and support. A warmup activity called "Skeleton Shapes" is offered (cataloged separately). [Note: "torch" in the UK = "flashlight" in the US.]

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
NRICH
10/05/2009
Some Rights Reserved
Rating
0.0 stars

This activity gives students practice drawing straight lines with a ruler and looking for and categorizing shapes, for example, by the number of sides in polygons. The Teachers' Notes page includes suggestions for implementation, discussion questions and ideas for extension.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
NRICH
06/05/2010
Some Rights Reserved
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In this activity, students investigate the possible sizes and orientations of squares in a 4 by 4 grid. They are to place as many counters as they can on the grid and avoid making the four corners of any square. Solutions require working systematically. Ideas for implementation, extension and support are included along with printable worksheets of grids (.doc)

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
NRICH
12/05/2002
Some Rights Reserved
Rating
0.0 stars

This interactive Flash game, played on a dot grid, offers an opportunity to practice visualizing squares and angles and also encourages students to use systematic strategies. The object is to select the four corners of a square in some size and orientation. The student can play against the computer or with another student. The dimensions of the grid can be adjusted. The student can opt to see the outline of a square once formed. The Teachers' Notes page offers suggestions for implementation, discussion questions, ideas for extension and support, and links to related activities.

Subject:
Mathematics
Material Type:
Activity/Lab
Game
Interactive
Provider:
NRICH
10/05/2004
Some Rights Reserved
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0.0 stars

This problem asks students to visualize a square drawn on a clock face and estimate and calculate its area. The problem can be solved without use of the Pythagorean Theorem. Ideas for implementation, extension and support are included along with printable sheets of clock faces.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
NRICH
10/05/2009
Some Rights Reserved
Rating
0.0 stars

This activity asks students to visualize shapes, paying close attention to the definitions of special polygons. Learners are given a sheet of isometric grid paper and asked to find and sketch 12 specific shapes. Ideas for implementation, extension and support are included along with printable grids and shape definitions.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
NRICH