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# Understand Halves and Fourths in Squares and Rectangles

## 2D shapes

• 2 D shapes are plane figures.
• 2 D shapes are closed figures.

### Triangle

• Triangle is a 2 D figure that has only 3 sides and 3 vertices.

### Circle

• Circle is a 2 D figure that has 0 sides and 0 vertices.

### Rectangle

• Rectangles are 2 D figures with 4 sides and 4 vertices.

### Square

• Squares are special rectangles with all four sides equal in length.
• You can use shapes to make pictures.

### a. Half of an object

• A shape can be divided into equal parts also.
• When a shape is divided into 2 equal parts, each part is called a half

### b. Halves to 1 whole

• Two halves of a figure make 1 whole.

Example: 2 halves of a rectangle make 1 whole rectangle.

### c. Quarter of a figure

• When a shape is divided into 4 equal parts, each part is called a fourth or a quarter.

Example: The rectangle is divided into 4 quarters.

### d. Quarters to 1 whole

1. Four quarters of a figure make 1 whole.

Example: 4 quarters of a circle make 1 whole circle.

### e. Quarter Vs Half

• Two quarters of a figure make 1 half.
• The circle with fourths has smaller shares. The circle with halves has fewer shares.

## Exercise

Q: Draw a line to cut the circle into half.

Q: Shade only one quarter of the given figure.

Q: Paint two fourths of the figure in green.

Q: How many parts do we get when we cut a figure into quarters?
Q: Cut the figure into two halves.

### What we have learned

• When the minute hand of a clock is on 6, we can say that 30 minutes or half past the hour.

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