Page 196 - NUMINO TB_4B

Activity 2 P. 137 Chanllenge NUMINO

Number of Perimeter, 1 . a. 5, 3, 2 P. 140~141
Triangles, x (unit), y 2. a. 2
b . A: 5 B: 1
1 3 c . 4, 1, 5 b . 2, 2
2 4 e . 7, 3 d. 4
3 5
4 6
5 7

8 Unit 31. Which Path Should I Choose?
7
Perimeter (unit)6 P. 142~143
5
4 At the fork with a spinner, the path is divided
3 into three paths because there are three
2 choices.
1 At the fork with a bag, the path is divided into
four paths because there are four choices.
0 1 32 4 5 6 7 8 At the fork with a coin, the path is divided into
Number of Triangles two paths because there are two choices.
At the fork with a die, the path is divided into
The perimeter of each figure is 2 units more six paths because there are six choices.
than the number of triangles.
Therefore, the y-coordinate is x-coordinate 2. Activity 1 P. 144~145
Therefore, the perimeter of the figure, which is
made of 6 triangles is 8 units. 1 . Sample Answer

Toss 1 2 3 4 5
Result tails tails heads tails heads
2 outcomes

Chanllenge P. 138~139 2 . a. - Rolling a 2

1 . C When the hare woke up, the tortoise - Rolling a 3 6
- Rolling a 4
had already passed him and was - Rolling a 5
- Rolling a 6,
almost at the finish line.
b . - Pulling out a red marble
D So, the tortoise finished the race before 4
the hare. The tortoise smiled. - Pulling out a blue marble
However, the hare cried because he
came in later and lost the race. - Pulling out a yellow marble

2 . Thomas - Pulling out a green marble,

Freestyle, backstroke c . - Spinning a green color
Butterfly
- Spinning a red color
- Spinning a blue color, 3

Answers 185