A foundational lesson for 3rd-grade students in self-contained SPED or Tier 2 intervention, focusing on the conceptual link between multiplication and division using visual arrays. Students act as 'Array Architects' to build and deconstruct rectangular models.

A fun, safari-themed lesson focused on mastering basic subtraction facts within 20 through practice and repetition.

A deep dive into higher-level mathematical notation, focusing on calculus, set theory, and Greek symbols through a complex Tarsia challenge.

A foundational lesson on solving one-step algebraic equations using inverse operations. Includes a visual reference guide and a structured practice worksheet with mixed operations.

A lesson on solving systems of linear equations using the substitution method (equal values method). Students learn to merge two identities (equations) for the same variable to find the coordinates of the "Double Agent" (intersection point).

A 30-minute introductory lesson on algebraic substitution. Students learn to verify if a given value is a solution to an equation by substituting the variable with the number and checking for equality.

An introductory lesson on solving one-step equations using inverse operations across all four operations. Students will learn to 'undo' operations to isolate variables through the metaphor of a construction blueprint.

A fundamental introduction to solving one-step equations using inverse operations with whole numbers. Students will practice addition, subtraction, multiplication, and division equations.

A hands-on lesson focusing on the recognition and application of mathematical symbols in numbers and operations through a collaborative Tarsia puzzle activity.

A comprehensive lesson on supplementary and complementary angles, focusing on definitions, identification, and calculating unknown values in geometric diagrams.

An introductory lesson on division where students learn to share items into equal groups through a fun bakery-themed narrative.

A comprehensive 10th-grade geometry lesson focusing on the five ways to prove a quadrilateral is a parallelogram, featuring coordinate geometry and formal proofs.

A comprehensive lesson covering the seven fundamental properties of parallelograms, based on the instructional video by Mr. Dallas. Students will learn definitions, congruence, supplementary angles, and diagonal relationships.

A foundational lesson on solving one-step algebraic equations using inverse operations, featuring a comprehensive reference guide and practice opportunities.

A comprehensive lesson on graphing linear equations using the slope-intercept form ($y = mx + b$). Students will learn to identify key components of the equation and translate them into visual lines on a coordinate plane.

A 15-25 minute exploration into how ancient navigators used fixed points (the North Star) and the repeating patterns of the universe (microcosms, macrocosms, and symmetry) to navigate without modern technology.

A 15-30 minute exploration of how ancient Phoenicians used the macrocosm of the stars to navigate the microcosm of their ships, featuring the root words micro/macro/cosmos and the mathematics of rotational symmetry.

A middle school math lesson exploring proportional reasoning through real-world scaling, mapping, and budgeting scenarios. Students use visual models and multiple pathways to solve authentic problems.

A comprehensive lesson on solving one-step inequalities using addition and subtraction, featuring a visual anchor chart, guided notes for instruction, and a practice worksheet with number line graphing.

A collection of 4th-grade Illustrative Mathematics center planning resources, including a visual reference and a CSV data export.

A comprehensive guide to solving quadratic equations using various factoring techniques, including GCF, difference of squares, and trinomials.

A collection of ocean-themed math activities focused on counting, identifying numbers 1-20, and developing one-to-one correspondence through task cards and a matching game.

A comprehensive review lesson that synthesizes all the skills learned in the Real World Math series. Students will complete a final assessment covering multi-digit operations, decimals, fractions, and percentages through a variety of workplace and financial scenarios.

Understanding the power of percentages in finance and data. Students will solve for parts, wholes, and percentages in contexts like sales tax, interest rates, discounts, and performance statistics.

Developing a strong grasp of fractions in practical contexts such as construction, cooking, and time management. This lesson covers simplifying, adding/subtracting with unlike denominators, and multiplying/dividing fractions.

Mastering decimals through the lens of currency and precise measurements. Students learn to add, subtract, multiply, and divide decimals to calculate unit prices, handle cash transactions, and interpret technical specifications.

A foundational lesson on multi-digit multiplication and division focused on workplace budgeting and large-scale inventory management. Students will practice these operations through realistic scenarios like calculating monthly revenue and distributing supplies across departments.

Teacher answer keys for the Real World Math series.

Instructional slides for the Real World Math series.

Extends number sense to 100, emphasizing place value (tens and ones), magnitude comparison, and identifying patterns in the 100-chart.

Develops the ability to compose and decompose numbers within 20, focusing on the power of 10 and building basic addition/subtraction fact fluency.

Focuses on identifying numbers to 20, mastering 1:1 correspondence through physical and visual counting, and developing perceptual subitizing skills.

A lesson focused on solving proportions that lead to linear and quadratic equations through cross-multiplication.

Une introduction interactive à la notion de fonction à travers l'analogie de la machine. Les élèves découvrent les termes d'image et d'antécédent par l'expérimentation en petits groupes.