A non-themed teacher's answer key for the Rectangle Partitioning assessment. Includes correct answers for all 5 questions, explicit DOK level indicators (1, 2, and 3), acceptable repeated addition equations, and a proficiency rubric based on cognitive demand.

An answer key and scoring rubric for the Mental Math Mastery Assessment. It provides clear answers, DOK levels, point values, and detailed grading criteria for open-response questions.

A comprehensive 12-question formative assessment for standard 2.NBT.B.8, focusing on mental strategies for adding and subtracting 10 or 100. It features a professional mastery-themed design with DOK levels 1-3.

Teacher answer keys for the Data Detective Guided Notes and Independent Practice Worksheet, providing solutions for all eight multi-step graph interpretation cases.

Independent practice worksheet for scaled graphs. Features eight sections of complex, multi-step graph interpretation (picture graphs, bar graphs, and frequency tables) with a detective theme. All questions focus on analysis and solving two-step problems. Layout condensed to 2 pages with expanded student work areas.

Guided notes for teaching scaled graphs, featuring vocabulary, a frequency table walk-through, and introductions to scaled picture and bar graphs with a detective theme.

An answer key for the 'Pantry Power' worksheet, including a pedagogical tip for parents to help children who might be struggling with addition.

A supplemental worksheet featuring visual addition problems up to 20, designed to reinforce the counting and combining strategies learned at home.

A hands-on recording sheet for a home activity where students use physical snacks to model and solve addition problems up to 20.

A colorful slide deck for parents to use at home to introduce the concept of adding two groups up to 20 using counting and 'counting on' strategies.

The corresponding answer key for the Veggie Rows Worksheet. Revised for improved layout, no-clipping visuals, and consistent card heights.

A student-facing worksheet where children identify rows and items per row in veggie-themed arrays, then write corresponding repeated addition sentences. Revised for layout consistency, contrast, and proper page flow.