Prepared by Max Hewitt, Master of
Teaching 1999
Subject: Accounting (Cost of Goods Sold: Periodic System)
Duration: 60 minutes Class: Senior Secondary
General Aim: Development of a skill
Specific Aim: To teach students how to calculate the cost of the goods sold by a business that holds inventory across a period of time using the periodic method.
Basic Method: Demonstration/Practice
Preparation:Teacher: Has analysed the steps and prepared an initial 'discovery' exercise using overhead slides (or handouts), a subsequent demonstration using a progressive labelling technique (ie flash cards with magnetic backing to be placed on whiteboard), and several practice worksheets for each student to complete individually.
Students: Year 10 commerce students with basic problem solving skills and a reasonable ability to think laterally. Students would be a degree of literacy in regard to business and accounting concepts.
CONTENT
Step 1
Cheesy Poofs in cupboard at beginning of the year
+ Cheesy Poofs purchased during the year
- Purchased Cheesy Poofs returned and refunded
+ GST on Cheesy Poofs
+ Delivery cost of purchased Cheesy Poofs
- Cheesy Poofs in cupboard at end of the year
= CHEESY POOFS EATEN BY CARTMEN DURING YEAR
$200
$1,000
-$85
$100
$50
-$125
$1,140
Setting
Teacher introduces "Southpark" dilemma to students explaining to them that Mrs Cartmen desperately requires their help in order to work out just how many Cheesy Poofs Eric ate last year &endash; accordingly she is willing to offer a reward to the first student able to help her solve the problem!
Teacher puts up first overhead (Overhead 1) and gives students 5 mins to try and solve Mrs Cartmen's problem encouraging them to show their workings so that Mrs Cartmen may understand how they have arrived at their answer.
Teacher circulates around the room encouraging the students, answering students questions, and looking out for first student to arrive at the correct answer.
Student with the correct answer present their answer on the board.
Teacher places up overhead detailing how they arrived the answer (Overhead 2)
Step 2
Demonstration
Teacher uses magnetic flash cards to sequentially identify each of the elements needed in order to calculate Cost of Goods Sold under the periodic method.
Step 3
Imitation
Teacher takes down magnetic labelling strips and arranges them randomly on the board.
Teacher chooses a student to arrange the components of Cost of Goods Sold in the correct order and using the appropriate mathematical function (ie "plus" or "less").
Student performs exercise with their peers raising their hands if they disagree and would like to assist.
Step 4
Consolidation
Students copy down in their notes an overhead associating the laymen component (ie from Southpark exercise) with the technically correct Cost of Goods Sold component.
Step 5
Practice
Teacher hands out practical exercise worksheet for students to practice using the Cost of Goods Sold format.
Students attempt worksheet ensuring the appropriate format is used.
Step 6
Students with errors:
Class errors:
Assessment
Worksheet 1 questions are corrected by students using the magnetic labels.
Teacher corrects errors and emphasises that once the format is learnt all is required of students is for them to attach the corresponding number to the corresponding component.
Students with errors are noted for remedial assistance in follow up lesson.
Examples are analysed to detect common class errors.