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, 45-minute comprehensive math review covering place value, fractions, and multi-step word problems for grades 3-5, designed as a 'Math Marathon'.

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.

A conceptual introduction to fractions using a bakery theme. Students explore area, set, and linear models through a collaborative 'Great Bakery Mix-up' task designed with UDL principles to ensure all learners can access deep mathematical concepts.

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 hands-on, kitchen-themed lesson where students explore fractions through area models, number lines, and real-world cooking scenarios. Includes tiered tasks for grades 3-5 to master fractional representation and comparison.

A 35-minute introductory lesson on solving area word problems using context clues and keywords. Students take on the role of 'Area Detectives' to identify when a problem is asking for area and how to calculate it using the length times width formula.

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.

Students represent and compare fractions on a number line, understanding distance from zero.

Students explore equivalent fractions using visual models and multiplication/division strategies.

Students learn to decompose fractions into unit fractions and non-unit fractions using tape diagrams and addition sentences.

Students identify and label fractions using area models and set models, focusing on the meaning of the numerator and denominator.

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.

A 35-minute lesson focused on decomposing rectilinear shapes into rectangles to find total area using the distributive property, themed around architectural blueprints.

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.

Mastery of the high-level multiplication facts for numbers 11 and 12, along with comprehensive mixed-fact reviews for ultimate fluency.

Progressive multiplication facts for numbers 6 through 10, focusing on the more challenging mid-range factors. Includes individual fact quizzes for each number.

Introduction to multiplication facts focusing on the foundational numbers 0 through 5. Includes individual fact quizzes for each number to build confidence and speed.

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.