Стр.136-137 Across the curriculum ГДЗ Комарова Ларионова 6 класс

Across the curriculum: Data

1. Complete the diagram descriptions with these words.

   Histogram, line graph, pie chart, bar

   A … to show favourite sports of 30 students in class 10BJ.

   A … to show number of students from classes 10BJ and 10XF who had school dinners between October and June.

   A … to show eye colour of students in class 10BJ.

   A … to show height of students in class 10BJ.

2. Look at the diagrams in exercise 1. Say if the statements are true or false.

   1. The favourite sport of students in class 10BJ is swimming.
   2. More students in class 10BJ enjoy tennis more than basketball.
   3. No one in class 10XF is less than 145 cm tall.
   4. Most students are between 155–160 cm tall.
   5. Fewer students had school dinner in October than in June.
   6. The number of students having school dinner decreased through the year.
   7. Most students in class 10BJ have brown eyes.
   8. The total number of students in class 10BJ is 33.

Math: Drawing pie charts

A pie chart is a circle divided into different sectors and it is a good way to make quick comparisons. We can make two pie charts to compare preferences of boys and girls from the following data.

3. Copy and complete the table with the total number of boys and girls in class 9CT.

   Favourite sport	Football	Swimming	Tennis	Total
   Girls	4	7	7
   Boys	9	6	3

4. Before we can draw the pie charts we need to calculate the angle of the sector representing each sport. To find this, we need to know the fraction of the students who prefer each sport and then multiply the fraction by 360 degrees.

   Copy and complete the table with the angles.

   Favourite sport	Football	Swimming	Tennis
   Girls	$$\frac{4}{18}\times360$$	$$\frac{7}{18}\times360$$	$$\frac{7}{18}\times360$$
   Angle
   Boys	$$\frac{9}{18}\times360$$	$$\frac{6}{18}\times360$$	$$\frac{3}{18}\times360$$
   Angle

   a) Draw a circle and a radius.

   b) Measure the angles carefully with a protractor.

   c) The completed pie chart for girls looks like this.

5. Draw the two pie charts in your notebook.

Project

Write a questionnaire for your class to find out what they think about school. Show the data using different kinds of diagrams.

Plan

Write a questionnaire for your classmates. You could include questions like these:

1. Which school subject do you like best?
   1. Maths
   2. English
   3. PE
2. How much time do you spend each week doing homework?
   1. less than one hour
   2. between one hour and three hours
   3. more than three hours but less than six hours
3. Which school subject do you find most difficult?
   1. Maths
   2. English
   3. Science

Research

Put the data into a table like this.

Prepare

Decide on the best way to show your data using different kinds of diagrams. Draw the diagrams.

Present your material

Put your graphs on a poster and write a short text to explain what you found.