# Iditarod Math 5

### From OpenContent Curriculum

## Contents |

## BSSD Standards Addressed

MA 5.10 – converts measurement

MA 5.11 – estimates length, weight, temperature

MA 5.12 – calculates elapsed time

MA 5.14 – measure within 1/8 in or mm

MA 5.19 – flips, slides, turns

MA 5.20 – acute, right, obtuse angles

MA 5.22 – similar, congruent, symmetrical shapes

MA 5.23 – locates points on a grid

MA 5.26 – calculates perimeter and area

MA 5.27 – constructs tables and graphs

MA 5.28 – probability

MA 5.30 – mean, median, mode, range

WR 4.04 – Proficient sample - letter

MA 6.09 - develops and interprets scale models

## Duration

## Materials Needed

- 1/8’ balsa wood

- 1/4’ dowel rod

- craft sticks

- straws

- tape

- rubber bands

- glue

- construction paper

Websites:

These websites have measurements and pictures of dog sleds

Mid distance and long range dog sleds

## Objectives

Student converts measurement

Student estimates length, weight, temperature

Student calculates elapsed time

Student measures within 1/8 in or mm

Student identifies flips, slides, turns

Student identifies acute, right, obtuse angles

Student identifies similar, congruent, symmetrical shapes

Student locates points on a grid

Student calculates perimeter and area

Student constructs tables and graphs

Student predicts probability

Student finds mean, median, mode, range

Student writes a letter

## Procedure

Pre-race:

- Record musher data – basic statistics – men/women, rookies/vets, Alaska, US, foreign

- Musher probability – based on how likely they are to meet a man/woman, rookie/vet, Alaskan, Us, or foreign

- Choose a musher to follow – and record information about this musher

- Research types of sleds and measurements

- Create foldable and diagram for of parts of sled - vocabulary

- Write a letter to the musher – asking details about their sled

- Measure a dog sled in inches and cm (convert feet to inch and meter to cm)

- Draw a diagram of that dog sled to scale on graphing paper

- Identify it slid, flipped, and turned

- Identify right, obtuse, and acute angles on the sled

- Identify similar, congruent, and symmetrical shapes on the sled

- Calculate perimeter and area of parts of the sled

- Build a scale model of a dog sled – measured to nearest mm and 1/8 inch

Race:

- Follow musher and record data in a journal on a daily basis

- Develop a book with the following information:

- Keep an Iditarod record sheet tracking the miles that your favorite musher has traveled along the trail and how many miles he or she has to go to Nome.

- Make a line graph showing the number place of your musher each day.

- Keep a bar graph of the temperature on the trail each day.

- Calculate the difference in temperature between the trail and in your town each day.

- Make a bar graph of the number of dogs your musher has each day.

- Make a line graph of the number of miles your musher travels each day.

- Use data to find mean, median, mode, and range of temperatures and distances

- Calculate time between checkpoints

- Using maps plot location of the musher on a daily basis

Post-race:

- Write a letter to musher congratulating them on their race

- Send model of sled or book as a gift