# An average autumn

This lesson will be a review of skills for calculating mean, mode, median, and range of a set of numbers to be created by the students. It will result in a seasonal display for the classroom or school-wide bulletin board.

**A lesson plan for grades 4–6 Mathematics**

## Learning outcomes

Students will demonstrate proficiency in calculating mean, mode, median, and range to describe a given set of numbers using calculators when appropriate.

## Teacher planning

### Time required for lesson

60 Minutes

### Materials/resources

- student calculators
- overhead calculator and projector
- math journals or index cards
- markers
- scissors
- blackline patterns (optional)
- colored construction paper (in fall colors: red, yellow, orange, brown, tan, green)

### Technology resources

computer with internet access (optional, only if students are using recommended website resources)

## Pre-activities

Students should have a general understanding of how to take a given set of numbers and find the mean, mode, median, and range. General use of a calculator for finding the mean will also be helpful for fifth grade.

## Activities

- Review mean, mode, median, and range with the overhead projector/calculator and student calculators.
- Lead students in assigning a number value to the alphabet sequentially (A=1, B=2, C=3, etc…)
- Have students write their first and last name in their math journals or on their index card and assign each letter a number value.
- Have students combine the first and last name values to create their number set.
- Allow students adequate time to find the mode, median and range of their number set.
- Students will use calculators to calculate the mean.
- Students will draw and cut a leaf shape using their construction paper.
- Students will write their name in the middle of their leaf with a marker and list the number values under the letters.
- Students will list the 4 different averages by name neatly underneath their names.
- Allow volunteers to share their averages and explain how they found them.
- Use the leaves as an Autumnal display in the classroom or hallway.

## Assessment

The students will check each other’s work by trading leaves with a neighbor and finding the averages, comparing them to the originals for accuracy.

The teacher will check the averages by sight and with a calculator to make sure that the students have a grasp of the skills needed to find the median, mode, range, and calculate the mean of a given set of numbers.

## Supplemental information

See attached files for leaf blacklines (optional):

### Comments

This lesson meets primarily the fifth grade curriculum, however, it is easily adapted to fourth grade by excluding mean and use of calculators.

- Common Core State Standards
- Mathematics (2010)
#### Grade 6

- Statistics & Probability
- 6.SP.5Summarize numerical data sets in relation to their context, such as by: Reporting the number of observations. Describing the nature of the attribute under investigation, including how it was measured and its units of measurement. Giving quantitative...

- Statistics & Probability

## North Carolina curriculum alignment

### Mathematics (2004)

#### Grade 4

**Goal 4**: Data Analysis and Probability - The learner will understand and use graphs, probability, and data analysis.**Objective 4.02**: Describe the distribution of data using median, range and mode.

#### Grade 5

**Goal 4**: Data Analysis and Probability - The learner will understand and use graphs and data analysis.**Objective 4.03**: Solve problems with data from a single set or multiple sets of data using median, range, and mode.