Builder
Make a thing then test it against a goal.
59 tools
Sentence Train
Word cars hook into a train; it only leaves the station when the sentence has a capital, spaces and an end mark.
Grade 1 · English Language Arts · BuilderFirst, Next, Last
Order picture cards with transition words to write a how-to (making a sandwich) or a short story.
Grade 2 · English Language Arts · BuilderMain Idea Umbrella
Details are raindrops; build the umbrella (main idea) big enough to cover them all.
Grade 2 · English Language Arts · BuilderHamburger Paragraph
Stack a burger: top bun topic sentence, fillings for details, bottom bun conclusion. Missing parts make it...
Grade 3 · English Language Arts · BuilderStory Building Blocks
Rebuild a scrambled short story, play or poem; each block (chapter, scene, stanza) must connect to the one before.
Grade 4 · English Language Arts · BuilderEvidence Locker
Collect quotes from a text in a locker; drag the best ones into a paragraph to support your claim.
Grade 5 · English Language Arts · BuilderEssay Architect
Arrange paragraphs, topic sentences and transitions into a logical essay; the building wobbles where the...
Grade 6 · English Language Arts · BuilderPlot Rollercoaster
Place story events on a rollercoaster (exposition, climb, climax, fall); see how the character changes at...
Grade 6 · English Language Arts · BuilderDebate Prep Desk
Pick a kid-relevant issue (later school start?), build a claim with reasons and sources, then face...
Grade 8 · English Language Arts · BuilderFlashback Editor
Rearrange a story's scenes into a flashback structure; preview how pacing and suspense change.
Grade 9 · English Language Arts · BuilderArgument Builder Pro
Construct a full argument outline with claim, counterclaim, rebuttal and evidence; a peer-review rubric...
Grade 10 · English Language Arts · BuilderThesis Workshop
Turn a vague claim into an arguable thesis about a text; gather evidence that proves it and analysis that...
Grade 12 · English Language Arts · BuilderArgument Map
Map a complex essay's structure into nodes and links; find the load-bearing claims.
Grades 3-5 · English Learners · BuilderOpinion Builder
Sentence frames and word banks to build an opinion with because and so; audio read-back.
Grades 6-8 · English Learners · BuilderSummary Scaffold
Graphic organizer that turns a text into a summary with citation frames and vocabulary support.
Grades 6-8 · English Learners · BuilderCER Builder
Build a claim-evidence-reasoning paragraph with language frames for a simple experiment.
Grades 3-5 · Library and Research · BuilderCredit Card Builder
Build simple source credits for books, websites and images; learn why creators deserve credit.
Grades 9-12 · Arts · BuilderVirtual Gallery
Curate a portfolio into a virtual gallery; arrange, title and write artist statements.
Grades 3-5 · Arts · BuilderSong Form Builder
Build songs from A and B sections; arrange AB, ABA and rondo forms and hear the result.
Grades 6-8 · Arts · BuilderStage Blocker
Block a scene on a top-down stage: place actors, lights and set pieces; preview from the audience.
Grades 9-12 · Arts · BuilderBrand Builder
Design a logo and brand kit for a fictional business: typography, color and layout with critique prompts.
Grades K-2 · Health and PE · BuilderLunch Tray Builder
Build a balanced lunch tray from the food groups; the plate shows what's missing.
Grades 9-12 · Health and PE · BuilderMeal and Move Planner
Plan a week of meals and workouts that balance energy; the tool flags gaps and extremes.
Grades 3-5 · Health and PE · BuilderPlaybook
Design offensive and defensive plays on a game board; test them in a simulated match.
Grades 9-12 · Health and PE · BuilderFitness Program Designer
Design a 6-week program using FITT principles; the tool checks for balance and progression.
Grade 1 · Computer Science · BuilderComputer Builder
Assemble a computer from parts (screen, keyboard, mouse, speakers) and see what each one does.
Grade 3 · Computer Science · BuilderTraffic Light Coder
Program traffic lights with if-then rules so cars and walkers stay safe.
Grades 6-8 · Computer Science · BuilderFlowchart Factory
Build flowcharts for everyday tasks and convert them to pseudocode; test them with inputs.
Grades 9-12 · Computer Science · BuilderNetwork Architect
Design a school network with routers, switches and firewalls; test traffic and failures.
Grades K-12 · World Languages and ASL · BuilderASL Family Tree
Build a family tree and sign each relationship; videos model each sign.
Grades 9-12 · Careers and Finance · BuilderPath Planner
Compare college, apprenticeships, certificates and military paths; plan a route to a goal.
Grades 6-8 · Social and Emotional · BuilderDecision Tree
Map decisions and consequences for real-life scenarios; weigh options and outcomes.
Grade 1 · Math · BuilderPizza Party
Cut pizzas and sandwiches so friends get fair shares; uneven cuts get a funny complaint from a guest.
Grade 2 · Math · BuilderGarden Grid
Partition a garden bed into equal rows and columns of plants; count the squares to plan the planting.
Grade 3 · Math · BuilderGraph Glow-Up
Redesign a crowded picture graph with a better scale; compare which version tells the story clearly.
Grade 3 · Math · BuilderFence Builder
Build a dog pen with a fixed amount of fencing; find the shape with the most room. Area vs perimeter, felt.
Grade 4 · Math · BuilderSkate Park Angles
Design ramps and turns with a protractor; the skater can only land certain angles.
Grade 6 · Math · BuilderExpression Garden
Grow expressions with algebra tiles; equivalent gardens look different but hold the same plants.
Grade 8 · Math · BuilderSki Slope Designer
Design ski runs by slope; too steep crashes, too flat stalls. Rise over run becomes a feel.
Grade 9 · Math · BuilderPolynomial Garden
Multiply polynomials as area models that grow into gardens; like terms bloom in the same color.
Grade 9 · Math · BuilderModel My World
Pick a real situation (phone data, gym fees, savings) and write the equation that predicts it; the tool...
Grade 10 · Math · BuilderRamp and Roof
Design accessible ramps and roof pitches that meet code using sine, cosine and tangent.
Grade 10 · Math · BuilderPackaging Challenge
Design a can or box that holds a given volume with the least material; compare against real products.
Grade 11 · Math · BuilderRollercoaster Polynomials
Design a coaster track by choosing zeros and degree; the ride has to start and end at ground level.
Grade 12 · Math · BuilderOptimization Workshop
Fence the biggest field, design the cheapest can; derivatives find the best design, and a slider proves it.
Kindergarten · Science · BuilderShade Builder
Build a shade over a sandbox using umbrellas, trees and tents; a heat camera view shows which spots stay cool.
Grade 1 · Science · BuilderNature Inventor
Animals and plants inspire inventions (burrs to velcro, beaks to tools); design your own gadget from a body part.
Grade 4 · Science · BuilderRube Goldberg Workshop
Chain energy conversions (electric to motion to sound) into a ridiculous contraption that rings a bell.
Grade 6 · Science · BuilderCooler Challenge
Design a lunchbox cooler from insulation materials; test which keeps ice longest.
Grade 7 · Science · BuilderEnergy Pyramid
Build an energy pyramid; see why only 10% of energy moves up each level and why there are fewer top predators.
Grade 8 · Science · BuilderBridge Builder
Design a bridge with a budget and constraints; test it with trucks, iterate and optimize.
Grade 9 · Science · BuilderReserve Designer
Design a nature reserve with a limited budget; balance habitat corridors, farms and towns.
Grade 9 · Science · BuilderFeedback Loop Builder
Connect ice, albedo, temperature and carbon in a causal loop; see which loops amplify and which stabilize.
Grade 11 · Science · BuilderRoller Coaster Physics
Design a coaster that completes every loop with friction on; energy conservation decides if it makes it.
Grade 12 · Science · BuilderDesign Challenge Studio
Tackle a global challenge (clean water, cooling) by breaking it down, prototyping and weighing tradeoffs.
Grade 7 · Social Studies · BuilderTenochtitlan Builder
Build Tenochtitlan on a lake with chinampas, causeways and temples; compare Maya and Inca engineering.
Grade 12 · Social Studies · BuilderBuild a Government
Design a government from scratch for a new island nation; pick a system and test it against crises.
Grade 12 · Social Studies · BuilderLocal Changemaker Planner
Plan a real civic action project: find the decision-maker, gather evidence and draft a proposal.