Take a square piece of paper and fold it in half. Find all the different ways to make a half.
A square paper can be folded in half in four main ways:
(1) Fold vertically: creating two rectangles.
(2) Fold horizontally: creating two rectangles.
(3) Fold diagonally from corner to corner: creating two triangles.
(4) Fold diagonally from the other two corners: creating two triangles.
All methods create two equal halves.
Explanation
The chapter uses paper folding to demonstrate that a square has more ways to be divided into halves compared to a rectangle. Students discover that diagonal folds create triangular halves while vertical and horizontal folds create rectangular halves. This reinforces that half means equal parts regardless of shape.
Solution Steps
Fold vertically - creating two rectangles
Fold horizontally - creating two rectangles
Fold diagonally from corner to corner - creating two triangles
Fold diagonally from the other two corners - creating two triangles