Thursday
Thursday: The folded map
Chris the Coyote taps the feather in his hat. "Here is a tale about a fold," he says.
One windy afternoon, Ferris the Fox found a fallen leaf on the trail.
He folded it down the middle, and the two halves matched perfectly.
Then he tried folding his map the same way. Again, the two halves matched.
Bennie the Bear called that fold a line of symmetry.
Ferris spent the rest of the day folding paper shapes to find more of them.
Some shapes had many fold lines. A few had none at all.
"And that," says Chris, "is why Ferris never runs out of things to fold."
Story: Lines of symmetry
A line of symmetry is a fold line. The two halves match exactly.
A rectangle has 2 lines of symmetry: one across and one up and down.
A square has 4 lines of symmetry. Its corner to corner folds work too.
A slanted parallelogram like this one has no lines of symmetry.
- Read the question.
- Tap your answer.
How many lines of symmetry does this shape have?How many lines of symmetry does this shape have?
How many lines of symmetry does this shape have?How many lines of symmetry does this shape have?
How many lines of symmetry does this shape have?- Read the question.
- Tap your answer.
- Read the question.
- Tap your answer.
What kind of angle is this?
40 + 50 = ?
65 + ? = 180
What kind of lines are these?| Sentence | True or false? |
|---|---|
| A square has 4 lines of symmetry. | ? |
| A rectangle has 4 lines of symmetry. | ? |
| Every shape has a line of symmetry. | ? |
| A line of symmetry folds a shape into matching parts. | ? |
Put a few drops of paint on one side of the fold.
Fold it closed and press gently. Then open it.
The fold is a line of symmetry for your picture.
What a fold! Tomorrow Freddy hosts the big review game.