Bog'liq k12 curriculum guides mathematics math 5 2015
118 MATHEMATICS 5 CURRICULUM GUIDE 2015 Specific Outcomes DATA RELATIONSHIPS Suggestions for Teaching and Learning Students will be expected to: Statistics and Probability 5SP2.5 Solve a given problem by constructing and interpreting a double bar graph. “The value of having students actually construct their own graphs
is not so much that they learn the techniques, but that they are
personally invested in the data and that they learn how a graph conveys
information. Once a graph is constructed, the most important activity
is discussing what it communicates to others who were not involved
in making the graph. Discussions about real data that students have
themselves been involved in gathering and graphing will help them
interpret other graphs and charts that they see in newspapers and on
TV.” ( Van de Walle and Lovin 2006, p. 329)
Brainstorm with students possible questions to use to collect data that
could be appropriately displayed on a double bar graph. Suggestions
might include:
• Does the intersection near the school have more traffic in the
morning or at lunch time?
• Is cheese or pepperoni pizza ordered more frequently on pizza day?
Students should select one of their questions, decide whether to use
first- or second-hand data, collect data, construct and interpret a double
bar graph to answer their question.
5SP2.4 Represent a given set of data by creating a double bar graph, labelling the title and axes, and creating a legend, without the use of technology. Model the construction of a double bar graph before students work
independently to construct their own. At beginning stages, students
could use grid paper to construct bar graphs to ensure that the
alignment and scale of the bars are correct.
Knowing your students is key to suggesting/modelling graphs which are
meaningful to your students. Hockey, soccer, baseball or football scores
may connect some students’ outside interests to mathematics. Book
sales of the latest popular children’s author may appeal to others. Still
more students may be interested in music downloads or video game
information. Allowing students to explore these areas of interest while
learning to display the data they collect in a double bar graph makes the
experience more authentic and may boost the task committment to what
can sometimes be a lengthy process.
Students should share their graphs with a partner and discuss such
questions as:
• How are your graphs different?
• What conclusions did you draw?
• How might your conclusions have changed if you had surveyed twice
as many adults as students?