A targeted intervention lesson to help students distinguish between the numbers 12 and 20 using base ten block visualizations and comparative practice.

A series of tracing and counting worksheets for numbers 11 through 14, featuring large bubble numbers for tactile practice and garden-themed objects for counting.

A lesson focused on mental math strategies for subtracting multiples of ten from numbers up to 120.

A focused set of activities to help first graders master 'how many more' and 'how many fewer' comparison word problems using simple, decodable text and engaging themes.

Foundational addition word problems within 20 using controlled vocabulary for first-grade readers, covering themes like pets, school, and play.

A lesson focused on representing numbers 0-99 in various forms including standard, word, expanded, and place value. Students act as 'Digit Detectives' to solve number cases.

A foundational math lesson for 1st graders focusing on adding tens and ones using base-ten models and numerical strategies. Students will explore how to combine groups of ten and single units to build larger numbers.

A foundational lesson on representing two-digit numbers using base ten blocks and word forms to build place value fluency.

A foundational lesson for 1st graders to master telling time to the nearest hour using analog and digital formats.

A practical math lesson focused on identifying, counting, and solving word problems involving coins and dollar bills up to $20. Students will practice visual counting and real-world application through word problems.

A series of worksheets designed to help first-grade students practice two-digit addition without regrouping using the visual aid of base ten blocks. Students will 'build' numbers with tens and ones to solve horizontal equations.

Students will learn to identify key information in word problems and apply the 'PETS' strategy to solve one-step addition and subtraction scenarios.

A lesson designed to boost math confidence in young girls by framing addition and subtraction within 20 as 'mastermind' skills through a personal field guide and growth mindset strategies.

Practice in estimating and measuring liquid volumes using liters and milliliters, with mental math exercises and scale reading.

Introduction to liquid volume and the liter as a standard metric unit, featuring container comparisons and visual estimations.

Introduction to weight, standard units (grams and kilograms), and estimation techniques using real-world objects and pets.

A fast-paced slide deck featuring number bonds with sums up to 20. Students must identify the missing addends in a variety of numerical bond configurations.