Farm to Table: Food Supply Chain and Price Math

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Career and Technical Education · Agriculture / FFA
SP-AG-009 · Free to print and use in your classroom · substituteplans.com
Page 2
Farm to Table: Food Supply Chain and Price
Math
Career and Technical Education · Agriculture / FFA · Grades 9-12 · 50 minutes
Time needed
50 minutes (one class period)
Prep
Copy the 2-page worksheet (one per student). Calculators are optional.
Technology
None. Calculators are optional.
Student
independence
High. Students work alone, then compare with a partner.
Copies to make
One 2-page worksheet per student
Materials
Pencils, Worksheet, Calculators (optional)
Goal for today: Students will describe the stages of a food supply chain and calculate the price added and the
percent share at each stage using given data.
Before the bell
☐ Copy the worksheet, one per student (2 pages).
☐ This is a paper-only lesson. Students must not use any tools, equipment or food. All prices are made up for
practice.
☐ Write on the board: Percent of the total = part ÷ total × 100.
☐ Keep the answer key on your desk. You do not need any business or farm knowledge.
Say this to start
Good morning! Your teacher left a lesson on how food gets from a farm to a store. A loaf of bread passes through many
hands before it is on a shelf. You will learn the stages, then use made-up prices to see how the price grows. Show your
math. Calculators are fine.

SubstitutePlans.com
Career and Technical Education · Agriculture / FFA
SP-AG-009 · Free to print and use in your classroom · substituteplans.com
Page 3
Run of show
Minutes
What you do
What students do
0–5
Take attendance the way the school requires. Hand out the
worksheets.
Settle in and take out a pencil.
5–13
Ask students to read the passage silently. Then ask a
volunteer to read it aloud while others follow along.
Read the passage and underline the five
stages.
13–20
Tell students to complete the matching (questions 1–5)
using the passage.
Match each stage to its meaning.
20–38
Tell students to fill in the price table, then answer
questions 6–8 using the table. Read this example aloud: if
a price rises from $1.00 to $1.40, the amount added is
$0.40.
Subtract to find the amount added, then
calculate percents.
38–46
Tell students to answer questions 9–12.
Answer short-answer and true/false
questions.
46–50
Read the table and answers aloud from the key. Collect all
worksheets.
Check answers and hand in the worksheet.
If things go wrong
• If a student says they do not understand percents, remind them: divide the part by the total, then multiply by
100.
• If students argue about whether prices are fair, remind them the numbers are made up and the question is
only about explaining where costs come from.
• If a student finishes in under 25 minutes, check that every table cell is filled, then use the early finisher list.
• If students ask about their own food or family grocery spending, thank them and steer back to the worksheet
data.
Early finishers
• Choose another food (apples, milk or eggs) and list the stages it passes through from farm to your table.
• Write two ways a store could reduce food waste.
• Calculate what percent of the final price the bakery added (answer: 1.35 ÷ 3.60 = 37.5%).
Support and challenge
• Support: Allow calculators and let students do the matching, the table’s “Added” column and questions 6, 8
and 10.
• Challenge: Ask students to calculate the percent of the final price added by each stage and check that the
five percents add to 100.

SubstitutePlans.com
Career and Technical Education · Agriculture / FFA
SP-AG-009 · Free to print and use in your classroom · substituteplans.com
Page 4
Notes for the teacher (you fill this in)
Jot a few lines before you leave. A full Daily Sub Report is in the free Sub Survival Kit at SubstitutePlans.com.
How far the class got / what to pick up next:
Students who were especially helpful:
Anything the teacher should know: