STAAR Success Cheat Sheet
STAAR Success
Math Power-Up • Grades 6-7
Part 1 of 3
Ratios & Proportions
Unit Rate:
Divide to find the cost or amount for ONE. Example: 12 apples for $3.00 → $3.00 ÷ 12 = $0.25 per apple.
Solving Proportions:
Use the "Fish Method": Cross-multiply, then divide!
\(\frac{x}{15} = \frac{4}{5} \rightarrow (15 \times 4) \div 5 = 12\)
Percent Wizardry
Tax / Tip / Markup
ADD to Total
Discount / Sale
SUBTRACT from Total
Percent Change Formula:
\[\frac{\text{Difference}}{\text{Original}} \times 100\]
Simple Interest:
\(I = Prt\)
I = Interest | P = Principal | r = rate (%) | t = time (years)
Algebra Alley
Inverse Operations (Undo):
The 2-Step Strategy:
- Undo Addition or Subtraction first.
- Undo Multiplication or Division second.
- Goal: Get the variable alone!
Grade 7 Pro-Zone
Constant of Proportionality (k):
\(k = \frac{y}{x}\)
In a table, \(y \div x\) must be the same for every row!
Identifying Relationships:
- Graph: Straight line through the Origin (0,0).
- Equation: \(y = kx\) (No constants added!)
Scale Factor:
\(SF = \frac{\text{New}}{\text{Original}}\)
→ If SF > 1, it grows. If SF < 1, it shrinks.
Pro-Tip: Always read the units! Miles vs. Feet, Hours vs. Minutes.
STAAR Success
Shape & Data Lab • Grades 6-7
Part 2 of 3
Geometry Gems
Circles (\(\pi \approx 3.14\)):
Circumference
\(C = 2\pi r\) or \(\pi d\)
Area
\(A = \pi r^2\)
3D Figures (Prisms & Pyramids):
| Figure | Volume | Surface Area |
|---|
| Prism | \(V = Bh\) | \(S = Ph + 2B\) |
| Pyramid | \(V = \frac{1}{3}Bh\) | \(S = \frac{1}{2}Pl + B\) |
B = area of base | P = perimeter of base | l = slant height
Composite Figures:
Break the shape into smaller ones. Find each area/volume and ADD or SUBTRACT as needed!
Probability Pulse
Basic Rule:
\(P = \frac{\text{Wanted Outcomes}}{\text{Total Possible}}\)
Independent
With replacement. Total stays SAME.
Dependent
Without replacement. Total gets smaller.
Stats Summary
Measures of Center
- MEAN: Average (Add & divide).
- MEDIAN: Exact middle. Order L to G first!
- MODE: Number seen the MOST.
Measures of Variability
-
RANGE: Maximum − Minimum.
-
IQR: Quartile 3 − Quartile 1.
-
MAD (Mean Absolute Deviation):
Average distance from the mean.
Box Plot Anatomy
Min Q1 Median Q3 Max
Pro-Tip: Use your reference chart! All formulas are provided there.
STAAR Success
RLA Toolkit & ECR Mastery • Grades 6-7
Part 3 of 3
Reading Radar
Text Structure Patterns
- • Cause & Effect
- • Compare & Contrast
- • Chronological (Time)
- • Problem & Solution
Literary & Rhetorical Terms
- Theme: The lesson (Never just 1 word!)
- Tone: Author's attitude.
- Ethos/Pathos/Logos: Credibility / Emotion / Logic.
- Hyperbole: Extreme exaggeration.
Grammar Guard
FIX
Fragments & Run-ons: Every sentence needs a Subject + Verb + Full Thought.
FIX
Commas: After intro phrases, in a list, or before FANBOYS (and, but, so...).
FIX
Pronoun Agreement: Must match gender and number (Singular vs Plural).
FIX
Verb Tense: Stay in the same time (Past vs Present) throughout the paragraph.
Writing Blueprint
ECR Argument Framework
-
- CLAIM: Your answer + 2 reasons.
-
- EVIDENCE: Specific quotes from the text.
-
- COMMENTARY: "This shows that..." (Connect it!)
Extended Response Pro-Tips
- Pace yourself: Plan 5 min, Write 25 min, Edit 5 min.
- Transitions are key: However, Furthermore, For example.
- Check your capitalization and punctuation before hitting submit.
You've got this! Breathe, read carefully, and trust your training.
