1. Design an Exercise Routine for a Specific Person
TODAY WE WILL:
Use Multiplication, Division, Addition, Subtraction, and ‘guess and check’ to solve a problem
Write number sentences to reflect word problems
Apply the order of operations

2. You as a Personal Trainer
Imagine you are working as a personal trainer.
A new client, Geoff, comes to you saying he wants to lose some weight and gain fitness.
As his personal trainer, your responsibility to Geoff is to design an exercise routine that suits his level of fitness to prevent injury.

3. The Problem Geoff needs an exercise routine but can only:
Burn 5000 kJ per week in energy
Exercise only up to ½ hour at a time
Exercise no more than once a day, four days a week
To maintain an interest in exercising you want Geoff to try at least two different activities

4. Vocabulary Personal Trainer – a person who helps people exercise.
Gym – a place where people go to exercise.
Exercise – activity requiring physical effort.
Exercise Routine – a sequence of activities to be followed regularly.
Kilojoule (kJ) – unit of energy in food and drink, and energy used by the body.

5. Some Types of Exercise Weights Rowing Machine Aerobics
Elliptical Trainer
Canoeing
Stair Climber

6. Practise Designing a Weekly Exercise Routine
Sally wants to exercise for 20 minutes in the morning and afternoon, Monday to Friday. She can do any form of exercise.
Ann wants to exercise for ½ hour a day at any time, 3 days a week, either swimming, jogging, or fast walking.

7. Example
You decide on some activities for Geoff and ADD up the amount of energy they use. It comes to a total of 4000 kJ.
SUBTRACT 4000 kJ from 5000 kJ to get kJ left to use.
Jogging uses 504 kJ per 10 minutes which is close to 500 kJ. You DIVIDE 1000 kJ by 500 kJ to get 2. This means you need 2 lots of 10 minutes which is 20 minutes of jogging.

8. Example cont.
You confirm your calculations: 10 minutes of jogging = 504 kJ 20 minutes of jogging = 2 x 504 kJ = 1008 kJ
You ADD this 1008 kJ to the 4000 kJ you already have to make a total of 5008 kJ
This is very close to 5000 kJ so your routine is complete.

9. Constructing Number Sentences
How much energy will you burn doing:
20 minutes of boxing
kJ = 2 x 352 or
15 minutes of jogging
kJ = ÷ 2
30 minutes of bicycling
kJ = 369 x 3 or
25 minutes of hiking
kJ = 2 x ÷ 2 or ÷ 2

10. Fill out Geoff’sTimetable
Fill out Geoff’s exercise timetable with your routine. For each session, write:
Length of session Activity
20 minutes
Skipping Rope