Build Understanding. Discover Patterns. Think Beyond.
$59 one-time for lifetime access, or included with Academy membership. Get Grade 2 →
Essential question
How can understanding numbers, mathematical relationships, patterns, and problem-solving strategies help us think more deeply and solve increasingly challenging problems?
Academy mission
Help second-grade students develop strong mathematical understanding, recognize relationships, solve unfamiliar problems, explain their reasoning, and pursue advanced mathematics when they demonstrate readiness.
Welcome, investigator
Welcome to the Grade 2 Math Acceleration Academy!
You’re about to become a mathematical investigator!
You’ll explore numbers, discover patterns, solve mysteries, build mathematical models, and tackle challenges that make your brain work in new ways.
Some concepts may be familiar. Others may be brand new.
You’ll discover what you already know, learn what you need, and explore more challenging mathematics when you’re ready.
Your mission is to think, investigate, explain, and prove your mathematical ideas!
Pre-Assess → Compact → Deepen → Accelerate → Apply → Prove
BUILD
Foundational teaching, worked examples, visual supports and guided practice.
MASTER
Targeted instruction that closes specific gaps.
DEEPEN
Complex investigations, multiple representations, error analysis and justification.
ACCELERATE
Sequenced advanced concepts from the Grade 3 or beyond.
Grade 3 concepts appear only as labeled acceleration and never count toward Grade 2 mastery.
Domain 1 — Operations & Algebraic Thinking
Domain 2 — Number & Operations in Base Ten
Domain 3 — Measurement & Data
Domain 4 — Geometry
Lab 1 · CCSS 2.OA.B · 2.NBT.B
How can place value, number relationships, and different strategies help us add and subtract efficiently and accurately?
Addition & subtraction within 20 · Mental mathematics · Within 100 and 1,000 · Place-value strategies · Regrouping · Explaining strategies · Error analysis
Open Lab 1 →Lab 2 · CCSS 2.OA.A · 2.OA.C
How can unknown numbers, equality, and mathematical relationships help us solve problems?
Equality · Missing numbers · Addition–subtraction relationships · Unknowns in different positions · Even and odd · Numerical patterns
Open Lab 2 →Lab 3 · CCSS 2.OA.A.1
How can we use mathematical strategies, logical reasoning, and evidence to solve unfamiliar problems?
Understanding problems · Relevant information · One- and two-step problems · Choosing operations · Diagrams & tables · Working backward · Checking solutions
Open Lab 3 →Lab 4 · CCSS 2.NBT.A
How can understanding place value, patterns, and number relationships help us solve mathematical mysteries?
Hundreds, tens and ones · Numbers to 1,000 · Expanded form · Comparing three-digit numbers · Skip-counting by 5, 10, 100 · Place-value reasoning
Open Lab 4 →Lab 5 · CCSS 2.OA.C
How can equal groups, repeated addition, arrays, and patterns help us understand multiplication?
Equal groups · Repeated addition · Rows and columns · Arrays up to 5 × 5 · Even and odd quantities
Grade 2 builds foundations through arrays and equal groups. Multiplication fluency is Grade 3 acceleration, not a Grade 2 requirement.
Open Lab 5 →Lab 6 · CCSS 2.MD.A–C
How can measurement help us describe, compare, and solve real-world problems?
Inches, feet, centimeters, meters · Choosing tools · Estimation · Length word problems · Number lines · Time to 5 minutes, AM/PM · Money and coins
Open Lab 6 →Lab 7 · CCSS 2.G.A
How can shape attributes and spatial relationships help us recognize patterns and design structures?
2-D and 3-D shapes · Sides, vertices, faces · Partitioning rectangles into squares · Halves, thirds, fourths · Equal shares
Open Lab 7 →Lab 8 · CCSS 2.MD.D
How can collecting and representing information help us answer questions and make mathematical decisions?
Data collection · Tables · Picture graphs · Bar graphs · Line plots · Measurement data · Interpreting results
Open Lab 8 →