Bring STEM creativity to Pi Day with this 10-page, black-and-white “STEM Invention Lab: Design a Pi Machine” worksheet pack for Grade 2. Students become kid engineers in a Pie Engineering Lab where they design silly, clever machines that roll dough, slice pies, build trays, mix ingredients, manage deliveries, and test final products.

Each worksheet features a new invention and a simple “machine data” set so students can solve real-feeling engineering math tasks. Every page includes 10 problems that reinforce key Grade 2 skills such as addition and subtraction (including regrouping practice), comparing and ordering numbers, measurement reasoning, basic geometry vocabulary, and logic-based decision making. The last problems naturally push students to apply skills in a multi-step way, making this set ideal for enrichment, review, and STEM-focused lessons.

This resource is perfect for Pi Day, STEM week, math centers, early finishers, sub plans, or homework—engaging enough to feel like a project, but structured enough to be truly standards-based.

What’s Included:

Worksheet 1: Circular Dough Roller
Skills: Comparing measurements, ordering numbers, addition/subtraction, geometry shape recognition, repeated addition
Task: Use tray and roller measurements to compare sizes, find differences, and solve pie production questions

Worksheet 2: Auto-Slicer 3000
Skills: Data comparison (most/least), addition/subtraction, ordering numbers, equal groups (intro division thinking)
Task: Analyze slice counts from different machines and solve slicing and total-slices challenges

Worksheet 3: Infinite Pie Generator
Skills: Comparing totals, addition/subtraction, ordering numbers, place value reasoning, grouping into tens
Task: Compare hourly production, find totals, and determine boxes needed using “10 per box” logic

Worksheet 4: Circular Tray Builder
Skills: Comparing lengths, addition/subtraction, ordering, near-estimation (closest to a target), repeated addition
Task: Use tray sizes to solve engineering measurement problems and decide which tray fits best

Worksheet 5: Dough Mixing Engine
Skills: Data comparison, addition/subtraction, ordering, word problems, grouping/arrays prep
Task: Compare ingredient amounts, find totals and differences, and solve “cups per pie” production questions

Worksheet 6: Pie Delivery Conveyor
Skills: Comparing numbers, addition/subtraction, ordering, grouping into equal sets, multi-step totals
Task: Use delivery counts across the day to find totals, differences, and box requirements

Worksheet 7: Smart Pie Oven
Skills: Comparing time durations, addition/subtraction, ordering, closest-to reasoning, time concepts
Task: Analyze baking times and solve scheduling questions using time and difference strategies

Worksheet 8: Pie Packing Machine
Skills: Comparing quantities, addition/subtraction, ordering, multi-step totals, equal groups (repeated addition)
Task: Use packing counts to solve box totals, changes, and shipping truck math

Worksheet 9: Pie Testing Lab
Skills: Comparing data, addition/subtraction, ordering, “how many more” difference problems
Task: Interpret taste-test scores and solve total points and comparison challenges

Worksheet 10: Ultimate Pi Machine Challenge
Skills: Mixed review of addition/subtraction, ordering, comparison, money, equal groups, multi-step reasoning
Task: Combine all invention-lab skills in a final factory output challenge with totals, money, and packaging

How It Helps Students:

• Builds confidence with Grade 2 number sense through consistent comparison and ordering practice
• Strengthens addition and subtraction fluency, including multi-step problems
• Develops measurement reasoning and math vocabulary in meaningful STEM contexts
• Encourages logical thinking and perseverance through “engineering decision” questions

How It Helps Teachers:

• No-prep worksheets—print and go
• Perfect for Pi Day, STEM week, centers, enrichment, review, or early finishers
• Clear structure on every page makes it easy to teach and easy for students to follow
• Works well for whole-class, small group, or independent practice

Solves Key Pain Points:

• Many seasonal math resources feel like random practice—this set has a consistent STEM storyline across all worksheets
• Engineering-themed prompts increase engagement for students who dislike traditional worksheets
• Built-in “data + decisions” format supports deeper reasoning, not just computation
• Multiple entry points allow mixed-ability learners to participate successfully

This resource includes typographically styled fractions and exponents, along with auto-formatted elements, designed to expose students to a variety of visual representations. By incorporating both digital and traditional formats, students encounter mathematical expressions in ways they may not often see in standard textbooks. This approach enhances flexible thinking and supports adaptation to various digital tools, platforms, and real-world scenarios. It encourages a deeper conceptual understanding and strengthens students’ confidence with diverse mathematical notations.

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