Key takeaway: Grade 6 math vocabulary covers 58 words students meet in sixth grade, from ratio and unit rate to absolute value, algebraic expression, surface area and mean absolute deviation.
Sixth grade is the year the language of math changes. Students stop talking only about numbers and start talking about relationships between them: a ratio of 3 to 2, a rate of 45 miles per hour, a variable that stands for an unknown amount. This Grade 6 math vocabulary list gathers every word of the year in one place.
The words are grouped by topic: ratios and percents, the number system, expressions and equations, geometry and statistics. Each one opens a page with a short definition, a figure and a problem solved step by step.
58 terms on this page, each with a definition, a figure and a worked example.
Grade 6 Math Vocabulary: the full list
Numbers and Operations
- Absolute Value 6.NS.C.7
- Dividing Fractions 6.NS.A.1
- Exponent 6.EE.A.1
- Greatest Common Factor (GCF) 6.NS.B.4
- Integer 6.NS.C.5
- Least Common Multiple (LCM) 6.NS.B.4
- Long Division 6.NS.B.2
- Opposite Numbers 6.NS.C.6a
- Order of Operations (PEMDAS) 6.EE.A.2c
- Prime Factorization 6.NS.B.4
- Quotient 6.NS.B.2
- Rational Number 6.NS.C.6
- Reciprocal 6.NS.A.1
Ratios, Rates and Percents
- Conversion Factor 6.RP.A.3d
- Double Number Line 6.RP.A.3
- Equivalent Ratios 6.RP.A.3a
- Percent 6.RP.A.3c
- Rate 6.RP.A.2
- Ratio 6.RP.A.1
- Ratio Table 6.RP.A.3a
- Tape Diagram 6.RP.A.3
- Unit Price 6.RP.A.3b
- Unit Rate 6.RP.A.2
Expressions and Equations
- Algebraic Expression 6.EE.A.2
- Coefficient 6.EE.A.2b
- Dependent Variable 6.EE.C.9
- Distributive Property 6.EE.A.3
- Equation 6.EE.B.5
- Equivalent Expressions 6.EE.A.4
- Independent Variable 6.EE.C.9
- Inequality 6.EE.B.8
- Inverse Operations 6.EE.B.7
- Like Terms 6.EE.A.3
- One-Step Equation 6.EE.B.7
- Term (Algebra) 6.EE.A.2b
- Variable 6.EE.A.2
Geometry and Measurement
- Area 6.G.A.1
- Area of a Parallelogram 6.G.A.1
- Area of a Trapezoid 6.G.A.1
- Area of a Triangle 6.G.A.1
- Coordinate Plane 6.NS.C.6b
- Net (3D Figure) 6.G.A.4
- Ordered Pair 6.NS.C.6c
- Quadrants 6.NS.C.6b
- Rectangular Prism 6.G.A.2
- Surface Area 6.G.A.4
- Volume 6.G.A.2
Statistics and Data
- Box Plot 6.SP.B.4
- Dot Plot 6.SP.B.4
- Frequency Table 6.SP.B.4
- Histogram 6.SP.B.4
- Interquartile Range (IQR) 6.SP.B.5c
- Mean Absolute Deviation (MAD) 6.SP.B.5c
- Mean, Median and Mode 6.SP.A.3
- Outlier 6.SP.B.5d
- Quartiles 6.SP.B.5c
- Range (Statistics) 6.SP.B.5c
- Statistical Question 6.SP.A.1