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 high-energy, medical-themed 50-minute review of proportional relationships, equations, and geometry for middle school students, featuring error analysis and state-test style practice.

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.

An inquiry-based exploration of proportional reasoning through recipe scaling, map navigation, and smart shopping for grades 6-8, aligned to Massachusetts curriculum frameworks.

A high-energy lesson focused on mastering multiplication facts up to 12x12 through interactive arcade-themed games and collaborative challenges.

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.

Students will learn to translate verbal phrases into mathematical number sentences using the four operations and solve for unknown values in real-world contexts.

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

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 comprehensive lesson on 3-digit by 1-digit division using the standard algorithm, themed around a detective investigation. includes a lesson plan, slides, anchor chart, and tiered worksheets.

A spy-themed introduction to the Order of Operations (PEMDAS), covering foundational rules, real-world applications, and common pitfalls through an engaging 'Mission' narrative.

A comprehensive lesson on multiplying and dividing fractions, featuring a variety of problem types including proper fractions, mixed numbers, and whole numbers.

A comprehensive 90-minute math lesson focused on generating and identifying equivalent expressions using properties of operations and substitution. It includes differentiated materials for advanced and scaffolded learners, plus a hands-on building project.

A comprehensive lesson on calculating possible outcomes using tree diagrams and factorials, using an exploration and pathfinding theme.

A collection of teacher-facing tools including scoring keys, result interpretation guides, and class-wide data tracking charts to help educators act on diagnostic findings.

A diagnostic assessment for 5th-grade students focusing on decimal operations, powers of 10, multi-digit division, and adding/subtracting fractions with unlike denominators.

A diagnostic assessment for 4th-grade students targeting multi-digit multiplication and division, place value to 1,000,000, fraction equivalence, and basic decimal notation.

A diagnostic assessment for 3rd-grade students covering rounding, multi-digit addition/subtraction, multiplication and division concepts, and introductory fraction understanding.

A diagnostic assessment for 2nd-grade students focusing on place value to 1,000, addition and subtraction within 100, and early foundations of multiplication through arrays.

A collection of 9 standardized probes and tracking tools to monitor student growth in number sense and fractions.

A March Madness-themed lesson that provides students with a strategic "Game Plan" for deconstructing and solving math word problems. Students use a basketball-themed graphic organizer to scout for data, draft a playbook, and execute their solution.

A comprehensive set of materials for mastering two-digit by two-digit multiplication, designed to support an IEP goal of increasing accuracy from 40% to 80%. Includes a progress tracker, instructional slides, practice worksheets, and assessments.

A comprehensive lesson focused on mastering 2-digit by 2-digit multiplication through the 'Blueprint' method, including instructional slides, student practice, and progress monitoring tools.

A comprehensive lesson focused on mastering 2-digit by 2-digit multiplication, designed to help students bridge the gap from 40% to 80% accuracy through scaffolded instruction and weekly progress monitoring.