the abacus: oldest counting machine\nfor thousands of years, the abacus has been used as a counting machine…

the abacus: oldest counting machine\nfor thousands of years, the abacus has been used as a counting machine. in many cultures, merchants who traded goods used the wooden beads of the abacus to count goods they bought and sold. they also used the abacus to figure out how much the multiples of their goods would cost. historians believe that the simplest abacuses probably involved drawing lines in the sand to represent units, such as 100s and 1000s. small pebbles were used to represent numbers within those units. with the development of number - notation, the abacus lost popularity in europe. however, people in many parts of the world use it to this day.\nwooden beads on an abacus were used to count units. their value depended on the column and position (up or down).\nanswer the questions about the text.\n1. list two features of expository text that this text contains.\n2. besides providing the topic, what does the heading tell you?\n3. what information in the text is supported by the diagram and caption?

the abacus: oldest counting machine\nfor thousands of years, the abacus has been used as a counting machine. in many cultures, merchants who traded goods used the wooden beads of the abacus to count goods they bought and sold. they also used the abacus to figure out how much the multiples of their goods would cost. historians believe that the simplest abacuses probably involved drawing lines in the sand to represent units, such as 100s and 1000s. small pebbles were used to represent numbers within those units. with the development of number - notation, the abacus lost popularity in europe. however, people in many parts of the world use it to this day.\nwooden beads on an abacus were used to count units. their value depended on the column and position (up or down).\nanswer the questions about the text.\n1. list two features of expository text that this text contains.\n2. besides providing the topic, what does the heading tell you?\n3. what information in the text is supported by the diagram and caption?

Answer

Brief Explanations:

  1. Expository text features: It provides factual information about the abacus, and uses a diagram with a caption for illustration.
  2. The heading "The Abacus: Oldest Counting Machine" not only gives the topic (abacus) but also emphasizes its significance as the oldest counting - machine.
  3. The diagram and caption support the text's information that wooden beads on an abacus were used to count units and their value depended on the column and position.

Answer:

  1. Factual information, use of diagram with caption.
  2. It emphasizes the abacus as the oldest counting machine.
  3. Wooden beads on an abacus were used to count units and their value depended on column and position.