Operation Fraction Slides Classified: Top Secret
OPERATION
FRACTION ACTION
Mastering Fractions, Decimals, and Operations for the STAAR Mission.
MISSION START // 2026
MISSION OBJECTIVES
01
Relate Fractions & Decimals
Convert tenths and hundredths between fraction and decimal forms. (TEKS 4.2G)
02
Add & Subtract Fractions
Solve problems involving fractions with like denominators. (TEKS 4.3E)
03
Decimal Operations
Add and subtract decimals to the hundredths place. (TEKS 4.4A)
STRATEGIC INTEL: UPS-CHECK
U - Understand
Read the problem twice. Circle numbers and underline the question.
P - Plan
What operation? Draw a strip diagram or a model.
S - Solve
Show your work carefully. Line up those decimal points!
C - Check
Does my answer make sense? Re-calculate to be sure.
DON'T GET CAUGHT BY DISTRACTORS!
Data Decoding: Tenths & Hundredths
Tenths
\( \frac{7}{10} \)
Fraction
0.7
Decimal
"Seven tenths"
Hundredths
\( \frac{25}{100} \)
Fraction
0.25
Decimal
"Twenty-five hundredths"
PRACTICE MISSION 1
Which expression is equivalent to 0.48?
A. \( \frac{48}{10} \)
B. \( \frac{4}{10} + \frac{8}{100} \)
C. \( \frac{4}{100} + \frac{8}{100} \)
D. \( \frac{48}{1} \)
Think: How many tenths? How many hundredths?
The Golden Rule of Fractions
When adding or subtracting fractions with the SAME DENOMINATOR...
Change the
Keep the
\( \frac{3}{8} + \frac{2}{8} = \frac{5}{8} \)
PRACTICE MISSION 2
Agent K drank \( \frac{3}{10} \) liter of water in the morning and \( \frac{4}{10} \) liter of water in the afternoon. What fraction of a liter did Agent K drink in all?
F. \( \frac{7}{20} \)
G. \( \frac{1}{10} \)
H. \( \frac{7}{10} \)
J. \( \frac{12}{10} \)
Strategy Tip Draw a strip diagram with 10 equal parts to visualize the total.
Precision Strike: Decimal Operations
Line up the decimals!
Add placeholders (0s).
Drop the decimal down.
12.45
+ 8.70
21.15
Precision is key to the mission!
WARNING: MULTI-STEP MISSION
A surveillance drone flew 14.8 miles on Monday. On Tuesday, it flew 3.25 fewer miles than it did on Monday. What is the total distance the drone flew on both days?
Step 1: Tuesday
14.80 - 3.25 = 11.55
Step 2: Total
14.80 + 11.55 = 26.35
Notice the word "fewer" in step 1 and "total" in step 2.
MISSION
ACCOMPLISHED
You have the intel. You have the strategy. Now, go complete your tasks!
Accuracy
100%
Readiness
MAX
Field Manual Teacher Guide FIELD MANUAL
Teacher Facilitation Guide
Operation
FRACTION ACTION
Mission Brief
This lesson prepares students for the rigorous formatting of the STAAR assessment by applying a "Secret Agent" theme to fraction and decimal operations. Students will bridge the gap between abstract number concepts and multi-step word problem applications.
Target TEKS
4.2(G) Decimals and Fractions
4.3(E) Fraction +/-
4.4(A) Decimal +/-
4.5(A) Multi-step Problems
Strategic Implementation
Anchor Strategy: UPS-Check
Encourage students to use the UPS-Check box on their scratch paper for every problem. This builds the habit of checking for "reasonableness" before selecting an answer.
Common Misconceptions (The "Enemy")
Fraction Denominators: Students adding denominators (e.g., 3/10 + 4/10 = 7/20). Emphasize the denominator as the "unit" or "identity" that stays the same.
Decimal Alignment: Students failing to line up decimals (e.g., 14.8 - 3.25 calculated as 14.55). Teach the "empty chair" rule—fill empty place values with zeros.
Multi-step Fatigue: Stopping after the first step. Use the "Mission Objective" metaphor—don't extract until the whole objective is met.
MISSION INTEL: ANSWER KEY
Slide Practice
Mission 1: 0.48 Equivalent
Answer: B
Strategy: 0.48 = 4 tenths (4/10) + 8 hundredths (8/100).
Mission 2: Agent K Water
Answer: H
Strategy: 3/10 + 4/10 = 7/10. Keep the denominator.
Worksheet Solutions
Task 1: Grid Conversion
Fraction: 34/100 | Decimal: 0.34
Task 2: Total Weight (Decimals)
Answer: 15.15 kg
Calculation: 8.4 + 6.75 (Must add placeholder 8.40).
Task 3: Remaining Ribbon
Answer: 3/12 yard
Calculation: 8/12 - 5/12 = 3/12.
Differentiation Tactics
For Struggling Agents:
Provide base-ten blocks for decimal addition and fraction circles for addition/subtraction. Use a "line up your decimal" template with vertical guide lines.
For Advanced Agents:
Ask students to simplify their fraction answers (e.g., 3/12 to 1/4) and create their own multi-step word problems involving both decimals and fractions.
Top Secret Task Worksheet Top Secret Task Worksheet
Agent ID: ___________________________________
Mission Date
___/___/2026
Agents: Complete the following tasks to secure the perimeter. Show all calculations in the designated work areas. Accuracy is paramount.
1
A secret laboratory floor is divided into 100 equal squares. 34 of the squares are painted blue. Which decimal and fraction represent the part of the floor that is painted blue?
A. 0.34 and \( \frac{34}{10} \)
B. 3.4 and \( \frac{34}{100} \)
C. 0.34 and \( \frac{34}{100} \)
D. 0.034 and \( \frac{34}{100} \)
Scratchpad
2
Agent J weighed two pieces of equipment. The first piece weighed 8.4 kilograms. The second piece weighed 6.75 kilograms. What is the total weight of the equipment in kilograms?
F. 15.15 kg
G. 14.15 kg
H. 7.59 kg
J. 15.11 kg
Show Work Here
3
An analyst had a ribbon that was \( \frac{8}{12} \) yard long. He used \( \frac{5}{12} \) yard of the ribbon for a document seal. How much ribbon was left?
A. \( \frac{13}{12} \) yards
B. \( \frac{3}{12} \) yards
C. \( \frac{3}{0} \) yards
D. \( \frac{2}{12} \) yards
Visual Model Area
4
A cargo plane made two deliveries. The first delivery was 45.2 miles away. The second delivery was 12.8 miles further than the first. What was the distance of the second delivery in miles?
Answer: _______________________
Precision Check
.
Secure Document // Level 4 Clearing
Extraction Point Exit Ticket EXTRACTION POINT
Mission Exit Ticket
Agent Identity
Mission Success Rate
1
Which expression has the same value as 0.73?
A. \( \frac{7}{10} + \frac{3}{10} \)
B. \( \frac{7}{10} + \frac{3}{100} \)
C. \( \frac{73}{10} \)
D. \( \frac{73}{1} \)
2
An agent team is tracking a target. In the first hour, the target moved 4.2 kilometers. In the second hour, the target moved 1.85 kilometers. What was the total distance moved in kilometers?
Final Calculation Zone
Final Answer:
________________ km
Return to HQ immediately upon completion.
