MATH LESSON PLAN
Temperature Bar Graph
|Outcomes |Student Goals |Materials Collection of newspaper weather pages |
|Students will figure mean, median and mode using weather, temperature data,|The weather and temperature ranges are often part of adult |Calculators, graph paper, colored |
|create a bar graph charting one city’s high and low temperatures, and |learners’ conversations and they want a better understanding |pencils, highlighters |
|formulate three questions based on that graph. |of graphs to help them make future decisions in their everyday|Commercial Consumption Graph |
| |lives. |Temperature Bar Graph Rubric |
| | | |
| | |NRS EFL 3-6 |
| | |Time Frame 45-90 minutes |
|Standard |Learner Prior Knowledge |
|Use Math to Solve Problems and Communicate |Student will be familiar with terms and calculation of mean, mode, median from earlier classroom activities. Calculation may be reviewed in class. |
|COPS |Activity Addresses COPs |Benchmarks |Activities [Real-Life Applications] |
|Understand, interpret, and work with pictures, numbers,|Graphs and questions on those graphs will be |1.3.6, 1.4.4, 1.5.4, 1.6.4 |Step 1 – Discuss with students when they see or use graphs in their everyday |
|and symbolic information. |created from gathered temperature data. |1.3.11. 1.4.9, 1.5.10, 1.6.8 |life (bills, newspapers). Inform students how the GED test includes many |
| | |1.3.12, 1.4.10, 1.5.11, 1.6.9 |questions presented in graphic form. Have a newspaper weather page available |
| | |1.3.13, 1.4.11, 1.5.12, 1.6.10 |to demonstrate. Ask the students if they would rather read all the weather |
| | | |information included on that page in written paragraph form or to view it as |
| | | |graphs and charts. Ask them to think about how easy the written form would be |
| | | |to read and understand. |
| | | | |
| | | |Teacher Note Talk about bar graphs and why they are effective. Bar graphs make|
| | | |it easy to compare totals that can be counted. They are used to show how |
| | | |something changes over time or to compare items. Bar graphs have an x-axis |
| | | |(horizontal) and a y-axis (vertical). The x-axis usually has numbers for the |
| | | |time period or what is being measured and the y-axis has numbers for the amount|
| | | |of times being measure. |
| | | | |
| | | |Step 2 - Instructor will demonstrate on overhead, chalkboard, or large piece of|
| | | |paper the key elements of a bar graph. |
| | | | |
| | | |Pass out the bar graph example titled Commercial Consumption from the National |
| | | |Restaurant Association. Talk about the different parts of this graph |
| | | |including: |
| | | |Title, x-axis/y-axis and what each |
| | | |represents, scale, data, |
| | | |source of the graph including the year |
| | | | |
| | | |Additional vocabulary will include perpendicular and parallel. Ask the class |
| | | |what conclusions they can reach regarding income and eating out. |
| | | | |
| | | |Step 3 - Students choose a United States or world city from the newspaper and |
| | | |note the high and low temperatures for each day in one week. They will |
| | | |calculate the mean, median, and mode using both the high and low figures and |
| | | |calculators to verify their answers. |
| | | | |
| | | |Step 4 - Using the data, graph paper, and colored pencils, they will create a |
| | | |graph representing that data. Make students aware of the criteria that will be|
| | | |used to assess their work. Distribute the Temperature Bar Graph rubric and |
| | | |explain each component. |
| | | | |
| | | |Writing Extension Each student will create three questions based on his or her |
| | | |bar graph for other students to answer. The questions may be content related, |
| | | |mathematical or a combination. |
| | | | |
| | | |Step 5 - Students trade graphs and questions. Have the students interpret the |
| | | |data and draw implications that allow them to correctly answer the questions. |
| | | |A class discussion will be the final step. Students will reflect on their |
| | | |success and complete the rubric evaluating his or her work. |
|Apply knowledge of mathematical concepts and procedures|Measures of central tendency (mean, median |1.3.17, 1.4.16, 1.5.16, 1.6.14 | |
|to figure out how to answer a question, solve a |and mode) will be calculated. | | |
|problem, make a prediction, or carry out a task that | |1.3.18, 1.4.17, 1.5.17, 1.6.15 | |
|has a mathematical dimension. | | | |
| | |1.3.19, 1.4.18, 1.5.18, 1.6.16 | |
|Define and select data to be used in solving the |Information will be represented correctly in |1.3.20, 1.4.19, 1.5.19, 1.6.17 | |
|problem. |both graphs and questions. | | |
|Determine the degree of precision required by the |The graphs will use the data gathered |1.3.21, 1.4.20, 1.5.20. 1.6.18 | |
|situation. |appropriately, and all elements will be | | |
| |labeled correctly. | | |
|Solve problem using appropriate quantitative procedures|Problems will be calculated accurately in |1.3.22, 1.4.21, 1.5.21, 1.6.19 | |
|and verify that the results are reasonable. |order for others to answer formulated |1.3.23, 1.4.22, 1.5.22, 1.6.20 | |
| |questions. | | |
|Communicate results using a variety of mathematical |The activity’s main focus is to gather data |1.3.24, 1.4.23, 1.5.23, 1.6.21 | |
|representations, including graphs, chart, tables, and |and accurately represent it in a graph. | | |
|algebraic models. | | | |
|Assessment/Evidence |Purposeful & Transparent |
|Instructor will monitor activity, noting accuracy, independence and fluency. |The GED test includes more graphs and charts then ever before. This activity will help the student prepare for |
| |material and questions in this format. The teacher models the creation of the key elements of a graph. |
|Graphs and questions will be collected and included in the student portfolio along with the rubric. | |
| |Contextual |
|Reflection/Evaluation |Everyday material comes to our students in the form of graphs and tables. This activity will build confidence in |
|Students enjoyed the activity and took more time than I anticipated drawing the graphs. Some wanted |understanding this information. |
|to take the graphs home to spend more time on making them look better. The questions were varied. | |
|Higher-levels students wrote more complex question. |Building Expertise |
| |Students are more likely to remember and understand something they have created themselves. This activity will |
|Next Steps |increase their ability to find average, median, and mode in other situations. Graphs may be a new concept for |
| |students or this activity may act as a review for the group. Evaluating student’s prior knowledge will be an |
| |important part for teachers to do before presenting this information. |
[pic]
Source: National Restaurant Association, Meal Consumption Behavior, 2000
This graph shows that income is an important indicator of families eating commercially prepared meals.
What is the title of this graph?
What number does the x-axis represent? The y-axis?
Who is more likely to dine out – Consumers with a household income of $75,000 or more or consumers with a household income of $35-$44,000?
What generalization can you make regarding eating out and household income? Why?
[pic]
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