Playing with Lines (Orientations of a line) — NCERT Solutions

Given: A dot grid and examples such as clouds and rainbows.

Concept: Curved lines bend smoothly and are used to draw natural shapes like clouds, rainbows, waves, hills, etc.

Steps:

1. To draw a Cloud: Draw several small bumpy curved lines joined together in a fluffy shape.
2. To draw a Rainbow: Draw a large curved (arc-shaped) line from one side to the other, and add more curved lines parallel to it for different colours.
3. To draw Waves: Draw a series of gentle S-shaped or U-shaped curved lines side by side.
4. To draw a Sun: Draw a circle (closed curved line) and add small curved or straight lines around it as rays.

Final Answer: Using curved lines on the dot grid, figures like clouds, rainbows, waves, hills, and the sun can be drawn. (Draw your own creative curved figures in your textbook.)

Given: Space to draw a design using any two types of lines.

Types of lines available: Vertical, Horizontal, Slanting, Curved.

Example design using Horizontal and Slanting lines:

1. Draw several horizontal lines across the page to form layers.
2. Add slanting lines crossing over them to create a criss-cross or woven pattern.

Another example using Vertical and Curved lines:

1. Draw vertical lines like fence posts.
2. Add curved lines like vines or waves between the posts.

Final Answer: Choose any two types of lines and create your own design in the space given. Make sure both types of lines are clearly visible in your drawing.

Given: Space to draw a design using any three types of lines.

Example design using Vertical, Horizontal, and Curved lines:

1. Draw a grid using vertical and horizontal lines (like a window or net).
2. Add curved lines inside or around the grid to represent flowers, waves, or clouds.

Another example using Horizontal, Slanting, and Curved lines:

1. Draw horizontal lines as the ground/sea.
2. Add slanting lines as rain or mountains.
3. Add curved lines as clouds or rainbows above.

Final Answer: Choose any three types of lines and create your own design in the space given. Make sure all three types of lines are clearly visible in your drawing.

Given: Space to draw a design using all four types of lines — vertical, horizontal, slanting, and curved.

Example design — A House Scene:

1. Vertical lines: Draw the walls of a house (two vertical lines on each side).
2. Horizontal lines: Draw the floor/ground and the top of the walls.
3. Slanting lines: Draw the slanting roof of the house.
4. Curved lines: Draw clouds in the sky, a sun, or a rainbow above the house.

Another example — A Nature Scene:

1. Vertical lines: Tree trunks, fence posts.
2. Horizontal lines: Ground, horizon.
3. Slanting lines: Rays of the sun, rain drops.
4. Curved lines: Clouds, hills, river, leaves.

Final Answer: Using all four types of lines — vertical, horizontal, slanting, and curved — create a complete scene or design in the space given. Each type of line must appear at least once in your drawing.

Given: A sheet of paper to be folded multiple times.

Concept: Each time a paper is folded, it creates a crease (a straight line). Folding in different directions creates vertical, horizontal, or slanting creases.

Steps:

1. Take a sheet of paper.
2. Fold it in half — this creates 1 crease (a straight line).
3. Fold it in half again — this creates more creases.
4. Keep folding as many times as possible.
5. Open the paper and observe all the crease lines.
6. Trace all straight (vertical/horizontal) creases with a RED crayon.
7. Trace all slanting (diagonal) creases with a BLUE crayon.
8. Count the total number of creases.
9. Compare with your friend to see who has more creases.

Final Answer: The more times you fold the paper, the more creases you get. Straight creases are traced in red and slanting creases in blue. The student who folds the paper more times will get the maximum number of creases.

Given: A sheet of paper.

Concept: Paper folding usually creates straight creases, but by folding the paper in a gentle arc or rolling it slightly, a curved crease can be formed.

Steps:

1. Take a sheet of paper.
2. Instead of folding it flat and straight, gently curve the paper into a slight arc shape.
3. Press along the curved fold to create a curved crease.
4. Open the paper and observe the curved line formed.

Alternatively:

1. Fold the paper diagonally multiple times in different directions — the overlapping folds can create an impression of curved lines.

Final Answer: By gently bending the paper in an arc before pressing the fold, a curved crease (curved line) can be made on the paper. This shows that curved lines can also be created through paper folding.