Folding Boxes

Purpose

The purpose of this activity is to engage students in using non-standard units to solve a problem involving area.

Achievement Objectives
GM3-2: Find areas of rectangles and volumes of cuboids by applying multiplication.
Description of Mathematics

The background knowledge and skills that should be established before and/or during this activity are outlined in the diagram below:

Click to show example questions for each heading

This activity may be carried out with step by step guidance, or by allowing the student to follow their own method of solution. The approach should be chosen in sympathy with students' skills and depth of understanding.

Activity

An origami box, folded from the biggest square that can be cut from a sheet of A4 paper, just fits a post-it note in its base.

The height of that box is half a post-it note. Use an unfolded origami box to work out how many post-it notes fit within the biggest square of a sheet of A4 paper.

  


http://www.origami-instructions.com/easy-origami-box.html

The procedural approach  (show more)

  • The student is able to use a non-standard units to find the area of a rectangle, with guidance.

The conceptual approach  (show more)

  • The student is able to use a non-standard units to find the area of a rectangle.
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Level Three