Skill updates

IXL is continually adding new skills and improving existing ones to offer fresh and exciting ways to practise math, English language arts and science. To accurately reflect the updated content, these curriculum enhancements may include adjustments to skill names and skill codes. Use this page to discover new skills and find old favourites!

Math
English
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JK
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Grade 1
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Grade 7
Grade 8
Grade 9
Grade 10
Grade 11
Grade 12
Calculus
Listing
Skill name and permanent skill ID
B.1
→
A.1
Understanding integers EW6
B.2
→
A.2
Integers on number lines SRE
B.3
→
A.3
Graph integers on horizontal and vertical number lines CJL
B.4
→
A.4
Understanding opposite integers 7Z4
B.5
→
A.5
Understanding absolute value BG2
B.6
→
A.6
Absolute value QPY
B.7
→
A.7
Absolute value and integers: word problems VDB
B.9
→
A.8
Compare and order integers 9WV
B.8
→
A.9
Integer inequalities with absolute values NGB
C.1
→
B.1
Integer addition rules L5Z
C.2
→
B.2
Add integers using counters NX7
C.3
→
B.3
Add integers using number lines PQQ
C.4
→
B.4
Add integers KH9
C.5
→
B.5
Add three or more integers X7G
C.6
→
B.6
Integer subtraction rules 2N3
C.7
→
B.7
Subtract integers using counters QZF
C.8
→
B.8
Subtract integers using number lines CMN
C.9
→
B.9
Subtract integers A5W
C.10
→
B.10
Integer addition and subtraction rules RFN
C.11
→
B.11
Add and subtract integers using counters QTW
C.12
→
B.12
Add and subtract integers 7Y8
C.13
→
B.13
Complete addition and subtraction sentences with integers BA9
C.14
→
B.14
Add and subtract integers: word problems YMB
C.15
→
B.15
Understand multiplying by a negative integer using a number line MHZ
C.16
→
B.16
Integer multiplication rules SLE
C.17
→
B.17
Multiply integers C59
C.18
→
B.18
Integer division rules M2N
C.19
→
B.19
Equal quotients of integers QYU
C.20
→
B.20
Divide integers V2T
C.21
→
B.21
Integer multiplication and division rules 5FD
C.22
→
B.22
Multiply and divide integers JVQ
C.23
→
B.23
Complete multiplication and division sentences with integers A8F
C.24
→
B.24
Add, subtract, multiply and divide integers QSG
C.25
→
B.25
Evaluate numerical expressions involving integers A2W
D.1
→
C.1
Decimal numbers review 97Y
D.2
→
C.2
Compare and order decimals EJB
D.3
→
C.3
Decimal number lines QV9
D.4
→
C.4
Round decimals DFV
E.1
→
D.1
Add and subtract decimals JU7
E.2
→
D.2
Add and subtract decimals: word problems PT5
E.3
→
D.3
Multiply a decimal by a multi-digit whole number 9HM
E.4
→
D.4
Multiply decimals and whole numbers: word problems R7S
E.5
→
D.5
Multiply decimals SJA
E.6
→
D.6
Divide decimals by whole numbers 7CR
E.7
→
D.7
Divide decimals by whole numbers: word problems 9P2
E.8
→
D.8
Divide decimals 78E
E.9
→
D.9
Estimate sums, differences and products of decimals KT5
E.10
→
D.10
Add, subtract, multiply and divide decimals: word problems D9J
E.11
→
D.11
Multi-step inequalities with decimals 5EP
E.12
→
D.12
Maps with decimal distances KCG
E.13
→
D.13
Evaluate numerical expressions involving decimals LFD
A.1
→
E.1
Prime or composite MWG
A.2
→
E.2
Prime factorization Q5K
A.3
→
E.3
Reciprocal inverses
→
Multiplicative inverses A9L
A.4
→
E.4
Divisibility rules NNA
A.5
→
E.5
Greatest common factor ZPU
A.6
→
E.6
Least common multiple Q2T
A.7
→
E.7
GCF and LCM: word problems SB9
G.10
Add 3 or more fractions with unlike denominators
→
Add three or more fractions with unlike denominators 87N
H.4
Multiplying fractions by whole numbers: choose the model
→
Multiply fractions by whole numbers: choose the model KZT
J.2
→
J.1
Convert between decimals and fractions or mixed numbers 4E8
J.1
→
J.2
Identify rational numbers YUG
A.8
→
J.8
Classify numbers
→
Classify real numbers 32U
J.8
→
K.1
Add and subtract fractions and decimals BM9
J.9
→
K.2
Multiply and divide fractions and decimals VUJ
J.10
→
K.3
Estimate products and quotients of fractions and mixed numbers YFC
J.11
→
K.4
Add, subtract, multiply and divide fractions and mixed numbers: word problems LDJ
J.12
→
K.5
Evaluate numerical expressions involving fractions DWA
J.13
→
K.6
Apply addition and subtraction rules 7VX
J.14
→
K.7
Add and subtract positive and negative decimals MA9
J.15
→
K.8
Apply multiplication and division rules TZL
J.16
→
K.9
Multiply and divide positive and negative decimals NXQ
K.1
→
L.1
Understanding exponents ZYP
K.2
→
L.2
Evaluate powers WEP
K.3
→
L.3
Solve equations with variable exponents XDU
K.4
→
L.4
Powers with negative bases 8G2
K.5
→
L.5
Powers with decimal and fractional bases 5JP
K.6
→
L.6
Evaluate numerical expressions involving exponents 6CY
K.7
→
L.7
Square roots of perfect squares VC6
K.8
→
L.8
Estimate square roots TVT
L.1
→
M.1
Understanding ratios 8HJ
L.2
→
M.2
Identify equivalent ratios SDL
L.3
→
M.3
Write an equivalent ratio WEF
L.4
→
M.4
Equivalent ratios: word problems JK9
L.5
→
M.5
Unit rates ZBQ
L.6
→
M.6
Equivalent rates EAA
L.7
→
M.7
Compare ratios: word problems UYS
L.8
→
M.8
Compare rates: word problems 63F
L.9
→
M.9
Ratios and rates: word problems S78
L.10
→
M.10
Do the ratios form a proportion? WGS
L.11
→
M.11
Do the ratios form a proportion: word problems XQZ
L.12
→
M.12
Solve proportions YCJ
L.13
→
M.13
Solve proportions: word problems XAW
L.14
→
M.14
Estimate population size using proportions N75
L.15
→
M.15
Rate of change: tables TFQ
L.16
→
M.16
Rate of change: graphs VNE
M.17
Constant rate of change: tables CML
L.17
→
M.18
Constant rate of change
→
Constant rate of change: graphs F7C
L.18
→
M.19
Scale drawings: word problems KFY
R.1
→
N.1
Coordinate plane review XQC
R.2
→
N.2
Quadrants and axes PDH
R.3
→
N.3
Follow directions on a coordinate plane ZBU
R.4
→
N.4
Distance between two points Z46
M.1
→
O.1
Find the constant of proportionality from a table 2UB
M.2
→
O.2
Write equations for proportional relationships from tables JNS
M.3
→
O.3
Identify proportional relationships by graphing UPK
M.4
→
O.4
Find the constant of proportionality from a graph DFA
M.5
→
O.5
Write equations for proportional relationships from graphs PMK
M.6
→
O.6
Identify proportional relationships 2AZ
M.7
→
O.7
Complete a table and graph a proportional relationship 77U
M.8
→
O.8
Interpret graphs of proportional relationships FQD
M.9
→
O.9
Write and solve equations for proportional relationships KYM
N.1
→
P.1
What percentage is illustrated? RA8
N.2
→
P.2
Convert between percents, fractions and decimals LAL
N.3
→
P.3
Compare percents to fractions and decimals DSR
N.4
→
P.4
Estimate percents of numbers 9WM
N.5
→
P.5
Percents of numbers and money amounts 2RL
N.6
→
P.6
Percents of numbers: word problems VGY
N.7
→
P.7
Solve percent equations HHU
N.8
→
P.8
Solve percent equations: word problems ZEB
O.1
→
Q.1
Add, subtract, multiply and divide money amounts: word problems FSB
O.2
→
Q.2
Price lists 9Z5
O.3
→
Q.3
Unit prices 7BH
O.4
→
Q.4
Unit prices: find the total price B97
O.5
→
Q.5
Percent of a number: tax, discount and more NES
O.6
→
Q.6
Find the percent: tax, discount and more CSY
O.7
→
Q.7
Sale prices: find the original price 3F7
O.8
→
Q.8
Multi-step problems with percents JNE
O.9
→
Q.9
Estimate tips NKB
O.10
→
Q.10
Simple interest 6RK
P.1
→
R.1
Estimate to solve word problems K2Q
P.2
→
R.2
Multi-step word problems 97S
P.3
→
R.3
Guess-and-check word problems 2YD
P.4
→
R.4
Use Venn diagrams to solve problems NHH
P.5
→
R.5
Find the number of each type of coin RRM
P.6
→
R.6
Elapsed time word problems 4N5
Q.1
→
S.1
Estimate metric measurements XF2
Q.2
→
S.2
Compare and convert metric units 7DR
Q.3
→
S.3
Metric mixed units
→
Mixed metric units V9X
Q.4
→
S.4
Convert square and cubic units of length Q73
Q.5
→
S.5
Convert between cubic centimetres and millilitres 2U3
Q.6
→
S.6
Precision YT7
T.9
→
U.1
Properties of addition and multiplication BFN
T.16
→
U.2
Simplify linear expressions YHZ
T.10
→
U.3
Multiply using the distributive property: area models 6PE
T.11
→
U.4
Multiply using the distributive property G2Z
T.12
→
U.5
Solve equations using properties 8A6
T.13
→
U.6
Write equivalent expressions using properties 2JJ
T.14
→
U.7
Add and subtract like terms YN5
T.15
→
U.8
Add and subtract like terms with exponents CXS
T.17
→
U.9
Factor linear expressions: area models QKU
T.18
→
U.10
Factors of linear expressions KWC
T.19
→
U.11
Identify equivalent linear expressions using algebra tiles 8C6
T.20
→
U.12
Identify equivalent linear expressions PAE
T.21
→
U.13
Identify equivalent linear expressions: word problems H2R
U.1
→
V.1
Which x satisfies an equation? H46
U.2
→
V.2
Write an equation from words YNQ
U.3
→
V.3
Model and solve equations using algebra tiles XZQ
U.4
→
V.4
Write and solve equations that represent diagrams HV5
U.5
→
V.5
Solve one-step equations EWR
U.6
→
V.6
Solve two-step equations F86
U.7
→
V.7
Solve one and two-step equations with decimals WFF
U.8
→
V.8
Solve one- and two-step equations: word problems AKV
U.9
→
V.9
Solve equations involving like terms 42B
U.10
→
V.10
Solve equations: complete the solution YZ6
U.11
→
V.11
Solve equations with variables on both sides FTM
U.12
→
V.12
Rearrange multi-variable equations EAK
V.1
→
W.1
Solutions to inequalities 2NT
V.2
→
W.2
Graph inequalities on number lines X6A
V.3
→
W.3
Write inequalities from number lines ZGE
V.4
→
W.4
Solve one-step inequalities SLJ
V.5
→
W.5
Graph solutions to one-step inequalities T2S
V.6
→
W.6
One-step inequalities: word problems XSQ
V.7
→
W.7
Solve two-step inequalities 6DF
V.8
→
W.8
Graph solutions to two-step inequalities EQF
S.1
→
X.1
Identify arithmetic and geometric sequences R47
S.2
→
X.2
Arithmetic sequences XUL
S.3
→
X.3
Geometric sequences DVK
S.4
→
X.4
Number sequences: mixed review UXQ
S.5
→
X.5
Number sequences: word problems XMK
S.6
→
X.6
Evaluate variable expressions for number sequences U8Q
S.7
→
X.7
Write variable expressions for arithmetic sequences YMA
W.1
→
Y.1
Does (x, y) satisfy the equation? YHC
W.2
→
Y.2
Identify independent and dependent variables 2VC
W.3
→
Y.3
Solve word problems involving two-variable equations DTG
W.4
→
Y.4
Complete a table for a two-variable relationship YWA
W.5
→
Y.5
Write a two-variable equation 92C
W.6
→
Y.6
Identify the graph of an equation AMT
W.7
→
Y.7
Graph a two-variable equation T2R
W.8
→
Y.8
Interpret a graph: word problems 8EQ
W.9
→
Y.9
Write an equation from a graph using a table LVL
X.2
→
Z.1
Name, measure and classify angles YTA
X.9
→
Z.2
Lines, line segments and rays E63
X.10
→
Z.3
Parallel, perpendicular and intersecting lines AGC
X.11
→
Z.4
Identify complementary, supplementary, vertical, adjacent and congruent angles NP2
X.12
→
Z.5
Find measures of complementary, supplementary, vertical and adjacent angles 27D
X.13
→
Z.6
Transversals of parallel lines: name angle pairs BPU
X.14
→
Z.7
Transversals of parallel lines: find angle measures K8G
X.15
→
Z.8
Find lengths and measures of bisected line segments and angles XCH
X.1
→
AA.1
Identify and classify polygons NDV
X.3
→
AA.2
Classify triangles CVP
X.4
→
AA.3
Identify trapezoids XTL
X.5
→
AA.4
Classify quadrilaterals T75
X.6
→
AA.5
Graph triangles and quadrilaterals PGW
X.7
→
AA.6
Find missing angles in triangles 5YL
X.8
→
AA.7
Interior angles of polygons 5MD
X.16
→
AA.8
Parts of a circle 45Q
X.17
→
AA.9
Central angles of circles EZK
Z.1
→
BB.1
Construct the midpoint or perpendicular bisector of a segment 2F7
Z.2
→
BB.2
Construct an angle bisector XW9
Z.3
→
BB.3
Construct a congruent angle WPG
Z.4
→
BB.4
Construct a perpendicular line 3J8
Z.5
→
BB.5
Construct parallel lines AWH
Z.6
→
BB.6
Construct an equilateral triangle or regular hexagon 9F8
AA.1
→
CC.1
Bases of three-dimensional figures 8C3
AA.2
→
CC.2
Nets of three-dimensional figures JHM
AA.3
→
CC.3
Front, side and top view V7P
BB.1
→
DD.1
Perimeter T83
BB.2
→
DD.2
Area of rectangles and parallelograms YNB
BB.3
→
DD.3
Area of triangles YCC
BB.4
→
DD.4
Area of trapezoids HCX
BB.5
→
DD.5
Area with mixed numbers AS6
BB.6
→
DD.6
Area and perimeter: word problems G7Z
BB.7
→
DD.7
Circumference of circles HTN
BB.8
→
DD.8
Area of circles K89
BB.9
→
DD.9
Circles: word problems LJQ
BB.10
→
DD.10
Semicircles: calculate area, perimeter, radius and diameter N2R
BB.11
→
DD.11
Quarter circles: calculate area and perimeter EYF
BB.12
→
DD.12
Area of sectors AC2
BB.13
→
DD.13
Area of compound figures with triangles, semicircles and quarter circles FK8
BB.14
→
DD.14
Area between two shapes 2LQ
BB.21
→
DD.15
Perimeter, area and volume: changes in scale
→
Perimeter and area: changes in scale ZJZ
BB.15
→
DD.16
Arc length Q87
BB.16
→
EE.1
Relationship between volume and the area of the base: word problems XK8
BB.17
→
EE.2
Volume of prisms and cylinders E7K
BB.18
→
EE.3
Surface area of prisms JCP
BB.19
→
EE.4
Surface area of pyramids 5A9
BB.20
→
EE.5
Surface area of cylinders 85S
Y.1
→
FF.1
Symmetry JPF
Y.2
→
FF.2
Identify reflections, rotations and translations 8VW
Y.13
→
FF.3
Combinations of reflections, rotations and translations
→
Describe a sequence of transformations TBG
Y.3
→
FF.4
Translations: graph the image S7K
Y.4
→
FF.5
Translations: find the coordinates 26L
Y.5
→
FF.6
Reflections: graph the image 38D
Y.6
→
FF.7
Reflections: find the coordinates BLM
Y.7
→
FF.8
Rotations: graph the image 96H
Y.8
→
FF.9
Rotations: find the coordinates CJ9
Y.9
→
FF.10
Describe transformations P45
Y.14
→
FF.11
Compositions of congruence transformations: graph the image
→
Sequences of congruence transformations: graph the image L5W
Y.15
→
FF.12
Sequences of congruence transformations: choose the sequence HUQ
Y.10
→
FF.13
Identify congruent figures 6B2
Y.11
→
FF.14
Congruence statements and corresponding parts 5J4
Y.16
→
FF.15
Determine if two figures are congruent: justify your answer ZMX
Y.12
→
FF.16
Side lengths and angle measures of congruent figures QQQ
Y.17
→
GG.1
Identify similar figures PKJ
Y.18
→
GG.2
Dilations: graph the image GRD
Y.19
→
GG.3
Dilations: find the coordinates SZU
Y.20
→
GG.4
Dilations: scale factor and classification ZU8
Y.22
→
GG.5
Side lengths and angle measures of similar figures ZWF
Y.21
→
GG.6
Determine if two figures are similar: justify your answer GPB
Y.23
→
GG.7
Similar figures and indirect measurement 67T
CC.1
→
HH.1
Interpret tables 9W3
CC.2
→
HH.2
Interpret line plots LTV
CC.3
→
HH.3
Create line plots VXR
CC.4
→
HH.4
Interpret stem-and-leaf plots VZ6
CC.5
→
HH.5
Create stem-and-leaf plots FHJ
CC.6
→
HH.6
Interpret bar graphs B7M
CC.7
→
HH.7
Create bar graphs 9JN
CC.8
→
HH.8
Interpret histograms 2ZD
CC.9
→
HH.9
Create histograms RHB
CC.10
→
HH.10
Create frequency tables NCN
CC.11
→
HH.11
Interpret circle graphs XT6
CC.12
→
HH.12
Circle graphs and central angles SVH
CC.13
→
HH.13
Interpret line graphs N92
CC.14
→
HH.14
Create line graphs NDY
CC.15
→
HH.15
Choose the best type of graph TKA
DD.1
→
II.1
Calculate mean and range 6YU
DD.2
→
II.2
Calculate mean, median, mode and range UVW
DD.3
→
II.3
Interpret charts to find mean and range VZ8
DD.4
→
II.4
Interpret charts to find mean, median, mode and range 6HA
DD.5
→
II.5
Mean and range: find the missing number MGW
DD.6
→
II.6
Mean, median, mode and range: find the missing number 6GA
DD.7
→
II.7
Changes in mean and range 5EW
DD.8
→
II.8
Changes in mean, median, mode and range UEE
DD.9
→
II.9
Identify an outlier and describe the effect of removing it NUD
DD.10
→
II.10
Identify representative, random and biased samples 6BH
II.11
Make an estimate from sample data 2C7
JJ.1
Sample spaces of simple events UQH
EE.1
→
JJ.2
Probability of simple events QLN
EE.2
→
JJ.3
Probability of simple events - word problems
→
Probability of simple events: word problems 4Y6
EE.3
→
JJ.4
Probability of opposite, mutually exclusive and overlapping events LNM
EE.4
→
JJ.5
Experimental probability JMV
EE.5
→
JJ.6
Make predictions 52M
EE.6
→
JJ.7
Sample spaces for compound events CE8
EE.7
→
JJ.8
Compound events: find the number of outcomes XZ9
EE.8
→
JJ.9
Counting principle P79
EE.9
→
JJ.10
Identify independent and dependent events PC9