Page 164 - NUMINO TG_1A
P. 164
10How Many People Like Skating? Unit
tMa erial Color Spinner [A4], Transparent Spinner
2 Use the tally chart. Draw the bar graph. 2. Have students use the tally chart on page
90 to complete the bar graph. Then have
Then answer the questions. students read the data.
Sample Answers
Red
Color Yellow When they are drawing a bar graph, tell
students to color the squares of the bars
Blue 8 9 10 from left to right, without any gaps.
blue After they have colored the bar graph, have
1234567 students write the total number of squares
Number of Times Picked at the end of each bar. Then compare the
numbers with the data in the tally chart to
a Which color did the spinner land on the most? check if they have done it correctly.
2e. This problem is related to probabilities. It
b Which color did the spinner land on the fewest times? is a good strategy to win the game given on
yellow page 90. Make sure that all the students
understand the main concept in question 2e.
c Which color did the spinner land on more, blue or yellow? Refer to .
blue
d Which color did the spinner land on fewer times, red or yellow?
yellow
e If your team could pick another color, which color would you
pick? Explain why.
Blue, because the spinner lands on blue the most.
This is because a larger part of the circle is covered by blue than red or yellow.
10. How Many People Like Skating? 91
Predicting the Probability of Getting a Color on the Spinner
Have students predict the color they will get the most on the spinner. This game is related to probabilities,
but it does not require students to know about accurate findings of probabilities. However, they will need
to know that the probability of spinning a color will depend on how much of the circle (spinner) is covered
by that color. After students have made their predictions, have them compare their predictions with the
actual results.
There is more chance that the arrow on the spinner will land on blue color, because it covers half of the
circle (spinner). Have students check if this is true by playing the game. Have them record the data on a
tally chart and make a bar graph.
1A Unit 10 147
tMa erial Color Spinner [A4], Transparent Spinner
2 Use the tally chart. Draw the bar graph. 2. Have students use the tally chart on page
90 to complete the bar graph. Then have
Then answer the questions. students read the data.
Sample Answers
Red
Color Yellow When they are drawing a bar graph, tell
students to color the squares of the bars
Blue 8 9 10 from left to right, without any gaps.
blue After they have colored the bar graph, have
1234567 students write the total number of squares
Number of Times Picked at the end of each bar. Then compare the
numbers with the data in the tally chart to
a Which color did the spinner land on the most? check if they have done it correctly.
2e. This problem is related to probabilities. It
b Which color did the spinner land on the fewest times? is a good strategy to win the game given on
yellow page 90. Make sure that all the students
understand the main concept in question 2e.
c Which color did the spinner land on more, blue or yellow? Refer to .
blue
d Which color did the spinner land on fewer times, red or yellow?
yellow
e If your team could pick another color, which color would you
pick? Explain why.
Blue, because the spinner lands on blue the most.
This is because a larger part of the circle is covered by blue than red or yellow.
10. How Many People Like Skating? 91
Predicting the Probability of Getting a Color on the Spinner
Have students predict the color they will get the most on the spinner. This game is related to probabilities,
but it does not require students to know about accurate findings of probabilities. However, they will need
to know that the probability of spinning a color will depend on how much of the circle (spinner) is covered
by that color. After students have made their predictions, have them compare their predictions with the
actual results.
There is more chance that the arrow on the spinner will land on blue color, because it covers half of the
circle (spinner). Have students check if this is true by playing the game. Have them record the data on a
tally chart and make a bar graph.
1A Unit 10 147
