Counting Collection Checks

An 8-lesson kindergarten mathematics unit developing foundational concepts of direct length comparison, conservation of number, keeping track to 20, and ordering quantities. Students progress from physical alignment and sorting to abstract numerical comparison and sequence ordering.

A high-energy foundational early math lesson where preschool and kindergarten students master perceptual subitizing for quantities 1 through 3. Students view rapid visual flashes of dot cards in diverse configurations and immediately replicate the quantities using hands-on playdough spheres.

A 4-question kindergarten exit ticket for Investigations Session 2.4 on Grab, Count, and Compare. Features tall, colorful linking cube towers standing on a flat baseline with simple prompts asking students to circle the tower with more.

A foundational math sequence engineered to build addition fluency to 10 through concrete ten-frame modeling, number path navigation, and missing addend investigations. Designed with visual scaffolds and structured repetition for students needing extra support.

A high-spirited kindergarten Halloween math lesson exploring numbers 1 to 10 with ten frames, subitizing, and making ten through playful pumpkin, bat, and potion counters.

A single-page, early-childhood exit ticket for Pre-K and Kindergarten learners to assess perceptual subitizing of 1, 2, and 3 dots and cardinality with dot-stamping and visual matching.

A targeted Tier 3 small-group intervention sequence focused on foundational number sense. Students build core counting, cardinality, and early place-value understanding through structured visual models and explicit multi-sensory routines.

A kindergarten measurement unit exploring direct comparison of object sizes and benchmark measurement using 10-sticks. Students practice comparing two objects side-by-side and evaluating whether everyday objects are longer or shorter than a ten-cube train.

A print-and-play classroom resource featuring a high-contrast 1-3 dot flash card deck in varied geometric arrangements alongside a tactile student playdough building mat with target molding zones.

A comprehensive standards-aligned mathematics curriculum suite spanning kindergarten number decomposition IEP toolkits to elementary algebraic problem-solving missions.

A high-energy, hands-on kindergarten lesson focused on understanding the 'one more' pattern from 1 through 10 using movement, visual number tracks, and concrete manipulatives.

A comprehensive two-page teacher lesson plan featuring instructional pacing, step-by-step game instructions, teacher scripting, differentiation strategies, and common misconceptions for teaching subitizing of numbers 1-3.