1. Lines

2. horizontal line

3. The sky is above the horizon. The sea is below the horizon.

4. The horizon makes a horizontal line!

5. five horizontal lines
Those are staff lines!

6. vertical line

7. The flagpole makes a vertical line!

8. The rocket takes off vertically! It goes straight up.

9. five vertical lines

10. Here is a horizontal line crossing a vertical line
Here is a horizontal line crossing a vertical line. The lines make a “t”!

11. diagonal line

12. another diagonal line

13. This stem makes a diagonal line.

14. five diagonal lines

15. Here are two diagonal lines crossing. They make an X!

16. Are these vertical lines, or are they diagonal lines?
What’s that letter?

17. These lines are all straight lines.

18. Squares and triangles are made of straight lines.

19. a curve
It is like a hill.

20. another curve
It is like a bowl.

21. It is like the letter “C”.
another curve
It is like the letter “C”.

22. It is like a crescent moon.
another curve
It is like a crescent moon.

23. Here is a crescent moon. It makes two nice curves.

24. Here are many curves!

25. Circles and ovals are made of curved lines.

26. Straight lines are different from curved lines.
straight line curved line They are different!

27. Are the railroad tracks horizontal or diagonal?

28. Do the sides of the teepee make vertical or diagonal lines?

29. Do the tree trunks make vertical or horizontal lines?

30. Look at the lines in the roof of this house
Look at the lines in the roof of this house. Are they straight or curved?

31. Look at the roof of this house. Is it straight or curved?

32. Which car’s roof is more curved?

33. Which letter is curved? Which letter has straight lines?

34. Here is a “D”. It is made up of two lines
Here is a “D”. It is made up of two lines. Which line is straight, and which line is a curve?

35. The End