A comprehensive lesson on calculating the area of irregular rectilinear shapes by decomposing them into smaller rectangles. Includes tiered practice, a project-based learning guide, and a detailed assessment rubric.

Students will learn to find the area of regular and irregular polygons by decomposing them into smaller rectangles, using a 'Shape Surgeon' approach.

A series of 3 hands-on centers focused on equivalent fractions using shapes, fraction strips, and number lines to build conceptual understanding.

A mini-lesson designed to help students identify key information and break multi-step fraction word problems into manageable parts.

A comprehensive review session covering fraction equivalency, simplification, mixed number conversions, and basic operations with unlike denominators.

Students apply their fraction operations to solve multi-step word problems involving measurement and construction scenarios.

Focuses on adding and subtracting mixed numbers with like denominators, emphasizing the regrouping process and visual decomposition.

Focuses on the conceptual link between mixed numbers and improper fractions using visual models and the 'Multiply and Add' method.

A comprehensive review lesson on converting between decimals and fractions, designed with a laboratory theme to encourage precision and experimentation.

A comprehensive lesson on multi-digit subtraction and money word problems for 4th graders, themed as a detective agency investigation.

A focused lesson on subtraction strategies using $1435 - 619$ as the primary example, featuring both the standard algorithm and number line methods.

Students act as urban planners to design 'Century City' using exactly 100 items with a budget of exactly $1,000. This collaborative project-based activity focuses on multi-digit addition and subtraction within 1,000.

Students will learn to use bar models to visualize and solve multiplication and division word problems involving whole unknowns, group size unknowns, and number of group unknowns.

A hands-on lesson exploring the relationship between water level and volume, teaching students how to observe, measure, and compare how much liquid a container holds.

Students synthesize their learning across all 4.NBT standards through a series of mixed-review 'Case Files'. Focus on ALN HLCs 1-4.

Students investigate the meaning of remainders in division word problems. Focus on ALN HLC 4 and 4.NBT.B.6.

Students practice multi-digit ÷ 1-digit division using partial quotients, justified by place value understanding. Focus on ALN HLC 4 and 4.NBT.B.6.

Students practice multi-digit ÷ 1-digit division by sharing base-ten units into equal groups. Focus on ALN HLC 4 and 4.NBT.B.6.

Students practice 2-digit by 2-digit multiplication using area models and partial products. Focus on ALN HLC 4 and 4.NBT.B.5.

Students practice multi-digit by 1-digit multiplication using area models and partial products. Focus on ALN HLC 4 and 4.NBT.B.5.

Students practice multi-digit subtraction using the standard algorithm, with a focus on decomposing/unbundling. Focus on ALN HLC 4 and 4.NBT.B.4.

Students practice multi-digit addition using the standard algorithm, justified by place value understanding and base-ten models. Focus on ALN HLC 4 and 4.NBT.B.4.

Students use number lines to round multi-digit numbers to any place. Focus on ALN HLC 3 and 4.NBT.A.3.

Students compare multi-digit numbers using place value understanding and relational symbols (>, <, =). Focus on ALN HLC 2 and 4.NBT.A.2.

Students practice reading and writing multi-digit whole numbers in various forms (standard, expanded, word). Focus on ALN HLC 2 and 4.NBT.A.2.

Students explore the 10x relationship between adjacent place value positions using base-ten blocks and place value charts. Focus on ALN HLC 1 and 4.NBT.A.1.

A fast-paced, 30-minute mission where students learn to decode the relationship between decimals and fractions using place value as their key.

A visually-driven lesson focused on comparing and ordering decimals using the 'Ghost Zero' strategy and place value analysis within a galactic navigation theme.

Tier 2 intervention materials for students needing extra support with mixed numbers and improper fractions. This lesson provides visual scaffolds, simplified language for struggling readers, and hands-on practice activities to reinforce foundational fraction concepts.

Students explore the foundational concepts of fractions, focusing on equal parts, numerators, and denominators through the lens of architectural blueprints and building blocks.

A project-based learning lesson where students design a miniature city using 2D and 3D geometric shapes to master geometry vocabulary and spatial reasoning.