Triangle Trials Worksheet
Conversion Lab
Name: ___________________________ Date: ___________
Student Worksheet
The Strategy Flowchart
As you watch the video, copy the strategy flowchart Mr. J uses at 0:22 into the boxes below.
FRACTION
DECIMAL
PERCENT
(Set up part/whole)
(Long Division)
(Multiply by 100)
The Conversion Triangle
Instructions: Work with a partner. Roll two dice. Place the smaller number as the numerator and the larger number as the denominator. Complete the conversion steps. Use your calculator only to check your final answer.
| Rolls | Fraction | Long Division Work | Decimal | Percent | |
|---|
| Roll 1: | | | | | |
| Roll 2: | | | | | |
| | | | | |
| Roll 1: | | | | | |
| Roll 2: | | | | | |
| | | | |
<table class="w-full border-collapse mb-8"><tbody><tr class="h-40"><td class="p-3 border-2 border-slate-200 align-top text-center font-bold text-slate-400 pt-4 italic w-24">Roll 1:<br>Roll 2:</td><td class="p-3 border-2 border-slate-200 align-middle text-center w-24"><div class="flex flex-col items-center"><div class="w-12 h-0.5 bg-slate-800 my-1"></div></div></td><td class="p-3 border-2 border-slate-200 bg-white"></td><td class="p-3 border-2 border-slate-200 bg-white w-28"></td><td class="p-3 border-2 border-slate-200 bg-white w-28"></td><td class="p-3 border-2 border-slate-200 bg-white w-16"></td></tr><tr class="h-40"><td class="p-3 border-2 border-slate-200 align-top text-center font-bold text-slate-400 pt-4 italic w-24">Roll 1:<br>Roll 2:</td><td class="p-3 border-2 border-slate-200 align-middle text-center w-24"><div class="flex flex-col items-center"><div class="w-12 h-0.5 bg-slate-800 my-1"></div></div></td><td class="p-3 border-2 border-slate-200 bg-white"></td><td class="p-3 border-2 border-slate-200 bg-white w-28"></td><td class="p-3 border-2 border-slate-200 bg-white w-28"></td><td class="p-3 border-2 border-slate-200 bg-white w-16"></td></tr></tbody></table>
LAB EXTENSION: FLIP THE SCRIPT
What happens if the larger number is on top?
Challenge Roll
5
2
Create the improper fraction \( \frac{5}{2} \)
LONG DIVISION WORK:
Decimal Form:
Percent Form:
Observation: When the numerator is larger than the denominator, the percent is always ____________ than 100%.
Converter Slides
7th Grade Mathematics
CONVERSION LAB
Fractions • Decimals • Percents
Divide & Conquer • Move the Point • Find the Part
Today's Mission
We will fluently convert between fractions, decimals, and percents.
Master the flow: From a ratio to a value to a score.
Long Division
Precision calculation.
Decimal Shift
Scaling values.
Percentage
Real-world results.
Rapid Fire!
5 MINUTE WARM-UP
Listen for the Fraction...
SHOUT THE PERCENT!
1/2 1/4 3/4 1/10 1/5
The Strategy
Math with Mr. J: Part over Whole
Embedded media
Notebook Check
Pause at 0:22 and copy the blue flowchart onto your worksheet.
Think About It
"Fractions are just a way to represent division."
The Conversion Flow
Start
PART
WHOLE
Fraction
LONG
DIVISION
Decimal
Move Point
0.85
85%
Percent
Triangle Trials
Activity Duration
25 MINUTES
The Setup
-
1
Roll two dice with your partner.
-
2
Create a PROPER fraction (Smaller number on top).
-
3
Use long division to find the decimal.
-
4
Convert the decimal to a percent.
The Rule
Calculators are for CHECKING ONLY. If your calculation doesn't match the calculator, find your error in the long division.
Team Roles
Partner A
The Roller
Partner B
The Checker
Switch roles every row!
Level Up: Challenge
FLIP THE SCRIPT
What happens if the LARGER number is on top?
5
2
Is it possible to have
MORE than 100%?
Lab Master Guide
Lab Master Guide
Lesson: Conversion Lab (7th Grade Math)
Teacher Resource
Objective
Students will fluently convert between fractions, decimals, and percents by mastering the long division method and understanding the "part over whole" conceptual framework.
Pacing Guide
Warm-up: Rapid Fire 5 Min
Video Instruction & Flowchart 10 Min
Triangle Trials Activity 25 Min
Extension & Wrap-up 10 Min
Materials
- Dice (1 pair per student pair)
- Triangle Trials Worksheets
- Calculators (for checking)
- Notebooks/Pencils
Warm-up: Rapid Fire Conversions
Call out the following fractions. Students should shout the percentage equivalent immediately. This builds mental math fluency for common benchmarks.
Call Out
1/2
Ans: 50%
Call Out
1/4
Ans: 25%
Call Out
3/4
Ans: 75%
Call Out
1/10
Ans: 10%
Call Out
1/5
Ans: 20%
Call Out
1/100
Ans: 1%
Call Out
4/5
Ans: 80%
Call Out
1/1
Ans: 100%
Video Facilitation: Mr. J
0:22
Pause Point: Strategy Setup
"One way I like to set these up... is to go from a fraction to a decimal to a percent."
Action: Students copy the blue flowchart into their worksheets.
0:45
Pause Point: The Fraction Setup
Discussion Prompt: "Which number is the numerator and why? What happens to the fraction if we are talking about a test score?"
Key phrase: "The part over the whole."
1:35
Pause Point: Long Division
Challenge: Ask students to perform 17 divided by 20 on their own paper before watching Mr. J do it.
Watch for: Adding the decimal point and the zero to 17.
3:34
Pause Point: The Final Step
Discussion Prompt: "Is 0.85 our final answer? What is the question asking for?"
Review: Moving the decimal twice to the right is the same as multiplying by 100.
Activity: The Conversion Triangle
Teaching Tips
- Proper Fractions Only: Emphasize that for the main table, the smaller number MUST be the numerator. This ensures they practice dividing a smaller number by a larger one using decimals.