Buy supplies online for a school canteen. Purchase given amounts of items such as bottles of orange juice and sesame bars. Look at the shopping list and check the prices and package sizes from the price catalogues of two traders. Estimate which trader will supply all the goods for the lowest total cost. Test your estimate by calculating the total cost from each price catalogue. Notice that unit prices vary depending on the multiples in which items are sold. This learning object is the last in a series of eight objects that progressively increase in difficulty.
Objective
1. Students use doubling and trebling strategies in multiplicative situations.
2. Students solve problems by selecting and applying efficient multiplicative strategies.
3. Students solve problems using or involving ratios and rates.
4. Students solve problems in a shopping context.
Curriculum Information
Education Type
K to 12
Grade Level
Grade 7, Grade 8, Grade 9
Learning Area
Mathematics
Content/Topic
Numbers and Number Sense
Intended Users
Educators, Learners, Students
Competencies
Copyright Information
Copyright
Yes
Copyright Owner
Education Services Australia
Conditions of Use
Use, Copy
Technical Information
File Size
0 bytes
File Type
application/x-rar
Software/Plug-in Requirements
Adobe Flash Player - http://get.adobe.com/flashplayer/
