World's populations 0 Overview Using this Resource Connecting to the Curriculum Marking Student Responses Working with Students This task is about understanding place value of larger numbers. Choose the number that is closest to each of the following population figures. Question 1Change answer a) In 1999 the population of Seoul, South Korea, was 10,231,217 people. This is closest to 1 thousand10 thousand100 thousand1 million10 million100 million1 billion10 billion100 billion1 thousand10 thousand100 thousand1 million10 million100 million1 billion10 billion100 billion Question 1Change answer b) In 1999 the population density of Monaco was 114,093 people (per sq. km). This is closest to 1 thousand10 thousand100 thousand1 million10 million100 million1 billion10 billion100 billion1 thousand10 thousand100 thousand1 million10 million100 million1 billion10 billion100 billion Question 1Change answer c) In 1999 the population of China was 1,246,871,951 people. This is closest to 1 thousand10 thousand100 thousand1 million10 million100 million1 billion10 billion100 billion1 thousand10 thousand100 thousand1 million10 million100 million1 billion10 billion100 billion Question 1Change answer d) In 1999 the population of Japan was 126,182,077 people. This is closest to 1 thousand10 thousand100 thousand1 million10 million100 million1 billion10 billion100 billion1 thousand10 thousand100 thousand1 million10 million100 million1 billion10 billion100 billion Task administration: This task can be completed with pencil and paper or online (with auto marking displayed to students). Level: 3 Curriculum info: Maths, Number and Algebra, Number Knowledge Keywords: rounding, place value, whole numbers Description of task: Students select from a set of numbers to show the closest number to each population fact. Answers/responses: Y6 (10/1999) a) 10 million moderate b) 100 thousand moderate c) 1 billion difficult d) 100 million difficult Diagnostic and formative information: Common error Likely reason a) b) c) d) 10 billion 100 billion 100 million 100 billion Unsure of thousands, millions, and billions so tends to overestimate by choosing the millions or billions houses. b) 1 thousand Reads one hundred thousands digit as if it were the thousands digit. a)-d) Wrong number of 1, 10, or 100 being used. Fails to group each number into sets of 3 (i.e., the thousands, millions, and billions houses).
