Mathematics3-5 reference
Place Value Lab
Elementary math: place value, base-ten structure, operations, and number sense
multiplication equation from model: connect model to equationLabPath
Assign a WorldExplore the Worlds
100 launchable experiences are open for Grades 3-5 review across all 100 Worlds.
27 Worlds
3-5 · MathematicsMathematics3-5 reference
Fraction Forge
Elementary and middle-school math: fractions, ratios, equivalence, operations, and proportional reasoning
array structure: build arraysMathematics3-5 review candidate
Algebra Lab
Represent an unknown quantity with a concrete box and preserve equality through matching moves.
Algebra Lab: Test one changeMathematics3-5 review candidate
Equation Solver
Treat an equation as a statement that two quantities are the same.
Equation Solver: Test one changeMathematics3-5 review candidate
Proportion Lab
Build fair one-to-one relationships before using formal ratios.
Proportion Lab: Test one changeMathematics3-5 review candidate
Graphverse
Connect a changing situation with a picture graph that rises, falls, or stays level.
Graphverse: Test one changeMathematics3-5 review candidate
Geo Proof
Use visible shape properties to justify why a claim remains true after moving or turning a shape.
Geo Proof: Test one changeMathematics3-5 review candidate
Proof Builder
Build a short explanation by connecting a claim to observable evidence.
Proof Builder: Test one changeMathematics3-5 review candidate
Word Problem Engine
Represent a story situation with objects, actions, and an equation appropriate to the grade.
Word Problem Engine: Test one changeMathematics3-5 review candidate
Measure Lab
Compare measurable lengths by aligning objects to the same starting point.
Measure Lab: Test one changeMathematics3-5 review candidate
Multiply Forge
Use equal groups to describe repeated quantities before symbolic multiplication.
Multiply Forge: Test one changeMathematics3-5 review candidate
Division Lab
Share a collection into equal groups and check for leftovers.
Division Lab: Test one changeMathematics3-5 review candidate
Decimal Bridge
Compose a whole from equal parts and connect tenths to familiar measurement contexts in Grade 2.
Decimal Bridge: Test one changeMathematics3-5 review candidate
Pattern Lab
Identify, extend, and describe repeating and growing visual patterns.
Pattern Lab: Test one changeMathematics3-5 review candidate
Shape Builder
Compose larger shapes from smaller shapes and decompose them in multiple ways.
Shape Builder: Test one changeMathematics3-5 review candidate
Coordinate Grid
Describe position and movement using directional language and an ordered grid path.
Coordinate Grid: Test one changeMathematics3-5 review candidate
Angle Lab
Compare turns and corners using square-corner and quarter-turn benchmarks.
Angle Lab: Test one changeMathematics3-5 review candidate
Surface & Volume Lab
Compare how containers cover space and how faces can be composed from shapes.
Surface & Volume Lab: Test one changeMathematics3-5 review candidate
Probability Lab
Describe chance using possible, impossible, and more or less likely outcomes.
Probability Lab: Test one changeMathematics3-5 review candidate
Linear Lab
Notice constant additive change in a concrete growing pattern.
Linear Lab: Test one changeMathematics3-5 review candidate
Pythagoras Lab
Compose and compare square regions without introducing a formal theorem prematurely.
Pythagoras Lab: Test one changeMathematics3-5 review candidate
Exponent Lab
Recognize repeated doubling as a growing pattern without symbolic exponent notation.
Exponent Lab: Test one changeMathematics3-5 review candidate
Function Intro
Describe a consistent input-output rule using a concrete machine.
Function Intro: Test one changeMathematics3-5 review candidate
Time Money Units
Order familiar events and connect clocks and coins with their everyday purposes.
Time Money Units: Test one changeMathematics3-5 review candidate
Ratio Rate
Compare repeated one-for-each relationships in familiar contexts.
Ratio Rate: Test one changeMathematics3-5 review candidate
Expression Lab
Connect different action stories that produce the same quantity.
Expression Lab: Test one changeMathematics3-5 review candidate
Inequality Lab
Compare two quantities using more, fewer, and the same before introducing symbols.
Inequality Lab: Test one change