A comprehensive teacher facilitation guide for the Mystery Math lesson. Includes a step-by-step instructional script, common student misconceptions to watch for, and a full answer key for the student worksheet.

A detective-themed worksheet for practicing finding unknown numbers in addition and subtraction equations within 20. Includes space for work, a word problem, and a creative section for students to design their own math mystery.

A detective-themed presentation for small group instruction on finding unknown numbers within 20. It uses the Part-Part-Whole model to explain three distinct mystery types (missing addend, missing subtrahend, and missing minuend).

An answer key for the Missing Measure Worksheet, providing sample equations and correct answers for all three length comparison word problems.

A student worksheet featuring three length comparison word problems with dedicated spaces for drawings, equations, and final answers, designed to help 1st graders practice finding unknowns in length contexts.

A comprehensive teacher guide for leading a 1st-grade small group lesson on comparing lengths and finding unknowns. Includes a hook, modeling strategies for addition/subtraction equations, and specific detective-themed prompts for guiding student thinking.

A two-page cut and paste activity where students count sets of objects and match them to the correct numerals 1-10. Features ninja-themed icons and clear work areas.

An engaging visual presentation for introducing numbers 1-10, featuring ninja-themed objects for group counting and 1-to-1 correspondence practice.

A comprehensive teacher guide for a 1-10 counting lesson, featuring instructional steps, differentiation strategies, and a list of required materials.

A planning template for RSP teachers following the Concrete-Representational-Abstract (CRA) instructional model. It provides a structured workspace to plan small-group interventions for math Power Standards, ensuring students move through tactile and visual stages before symbolic computation.

A teacher answer key and scoring guide for the Math Level Navigator Exam, renumbered to match the level-based item scheme (1-4 per level) and mastery criteria for grade placement.

A three-page leveled math placement assessment covering California Common Core standards from Kindergarten through 5th grade. Items are renumbered 1-4 within each level section to simplify scoring and identify student entry points. Includes stable formatting for all math problems.