Less lesson planning.
More making together.

THE COMPLETE HOUSEHOLD COLLECTION

One hundred forty-four projects, one consistent teaching system

One hundred forty-four project packs plus a parent handbook: 145 printable PDFs. Each project includes three sessions, learner recording, worked answers, adaptations and a next step. About project testing.

Count & compare

• Equal-unit desk measuring strip — Measure a length with repeated equal units and distinguish a count from a valid measurement.
• Long-short supply sleeves — Order lengths using a common starting edge and compare differences in equal units.
• Balance prediction station — Compare mass from balance evidence; separate size, prediction and observation.
• Scoop capacity comparison cards — Compare capacity by repeating one consistent scoop and distinguish capacity from current contents.
• Build-order time cards — Order a process and compare measured durations without treating speed as achievement.
• Choose-a-unit measuring kit — Choose a sensible repeated unit and explain why numerical counts change when unit size changes.
• Cardboard shape-sort organizer — Classify shapes by defining attributes rather than color, size or orientation.
• Compose-a-sign puzzle — Compose the same outline from different pieces and distinguish piece count from covered area.
• Fold-and-match symmetry cards — Test reflection symmetry by matching halves across a fold, not by visual guess or equal area alone.
• Position-map treasure mat — Follow spatial directions using a fixed viewpoint and check routes one move at a time.
• Cube-model picture cards — Match a cube construction to simple views and recognize that a view can hide cubes.
• Equal-halves paper sharing mats — Partition one whole into equal-area halves and distinguish equal shares from any two pieces.
• Ten-and-ones inventory pockets — Compose a ten from ten ones and represent teen quantities without treating the digits as unrelated counts.
• Count-by-tens supply tracker — Track multiple complete groups of ten and leftovers, maintaining quantity through packing and unpacking.
• Classify-and-tally collection board — Use exclusive categories and one tally per item to record a collection without omissions or double counting.
• Picture-graph supply display — Build and interpret a one-picture-one-item graph using aligned baselines and equal-size symbols.
• Design a small tabletop shop — Use whole-token prices to make a purchase plan, conserve tokens through exchange and explain change.
• Build a family game-kit organizer — Integrate inventory, fit, labels and a checkable design choice in a learner-created tabletop organizer.
• Pattern instruction card set — Write reproducible rules, test instructions and complete the A3 cumulative review.
• Two-by-five label rack — Compare row and column groupings while checking ten-place capacity.
• Pair-parking mat — Track complete pairs, unpaired items and container decisions.
• Growing-step cardboard mosaic — Build growing rows and distinguish a new row from a new total.
• Border-pattern stamp strip — Identify the repeating group, predict positions and repair a border.
• Build-to-ten packing challenge — List all feasible ten-place recipes; includes the A2 cumulative check.
• Missing-piece cover board — Recover a hidden part and recognize insufficient information.
• Repair-shop take-away envelopes — Separate removed cards from remaining available stock.
• Supply delivery addition track — Model arrivals and count on without counting the starting position.
• Two-pocket parts mat — Split a conserved whole and recover a covered part.
• Equal-stock drawer labels — Pair stocks and distinguish adding, removing and transferring.
• Count-and-check tool silhouette mat — Audit missing/extra kinds, plus the A1 cumulative check.
• Quantity match delivery cards — Connect spoken numbers, numerals and rearranged collections; check zero and repair orders.
• Build a five-pocket sorting wallet — Match one card to each place; diagnose empty, doubled and extra cards.
• Make a ten-frame supply board — See five-and-some-more and decide how many labels to restock to ten.
• Tabletop supply sorter — Count objects to 10 and compare two groups.
• Repeating-pattern desk mat — Recognize a repeating unit and connect repeats to totals.
• Make a number-path game — Separate a starting position from the number of moves.

Measure & fit

• Bundle-exchange supply bank — Trade ten ones for one ten while preserving the quantity.
• Inventory addition clipboard — Estimate, combine two inventories and record regrouping without losing units.
• Restock subtraction pockets — Use a visible exchange to find remaining stock and the amount needed to restock.
• Number-line measuring path — Represent a difference as distance, choosing and explaining efficient jumps.
• Round-to-order quantity board — Separate a rounded estimate from exact demand and whole-pack purchasing.
• Missing-delivery stock puzzle — Reconstruct a missing stock record using a model and inverse operation.
• Perimeter string template — Measure the boundary separately from the surface covered.
• Square-tile desktop mosaic — Measure area by equal square units and connect rows to multiplication.
• Angle-turn direction wheel — Describe quarter, half and full turns with a fixed starting direction.
• Composite-shape noticeboard — Find area and boundary of an L-shaped board using non-overlapping rectangles.
• Tenths-and-hundredths price grid — Connect tenths and hundredths to the same whole and compare decimal values.
• Price-and-change pretend shop — Calculate totals and change using cents and a second checking method.
• Unit-switch measuring card — Convert centimetres and millimetres while preserving physical length.
• Time-plan project clock — Calculate elapsed time across an hour boundary and plan sequential tasks.
• Measurement line-plot display — Record repeated measured lengths and interpret frequency on an equally spaced scale.
• Build a budgeted tabletop display — Coordinate dimensions, stock, cost and time to choose a feasible paper display.
• Fraction-measure transfer kit — Make reference-aware decisions; includes the B4 cumulative independent check.
• Fraction-join label border — Join like-unit lengths and distinguish butt joins from overlap.
• Mixed-number ribbon plan — Connect mixed numbers, fraction counts and minimum whole-blank orders.
• Equivalent-fraction folding screen — Generate and explain equivalent names through equal subdivision.
• Fraction-strip comparison wallet — Compare fractional lengths with a common whole and explain changed-whole decisions.
• Two-step order packing board — Coordinate recipes, stock and required reserves.
• Fair-share project-kit capstone — Prove a maximum complete kit count; includes the B3 cumulative check.
• Fact-family window wheel — Recover hidden factors and distinguish sharing from grouping.
• Remainder decision cards — Choose full-group, contain-all or divisible-share answers from the same division.
• Equal-share supply pouches — Find equal share size with a fixed group count and a checked reserve.
• Pack-size dispatch station — Find complete groups of a fixed size and distinguish the two division meanings.
• Multiplication choice game — Choose and justify a representation; complete a fresh cumulative unit check.
• Scale-up supply kit orders — Scale fixed recipes, reserve stock by type and justify complete-kit promises.
• Rectangle-factor card rack — Search factor pairs, test rotated designs and choose a feasible full rectangle.
• Skip-count hanging label strip — Connect equal jumps, starting stock and exact versus at-least packing decisions.
• Break-apart mosaic board — Explain products by partitioning a whole array without gaps or overlaps.
• Array-grid desk organizer — Connect equal rows, multiplication and stock-versus-capacity decisions.
• Equal-parts measuring bookmarks — Connect ruler units, halves and quarters to one length.
• Three-tray pencil station — Use borders and repeated widths to plan a fit.
• Cardboard picture frame — Measure equal margins and compare inside and outside rectangles.

Area & proportion

• Fraction-length cutting plan — Add unlike fractions with a length representation
• Fraction-of-a-batch packing mat — Multiply a fractional quantity and interpret its unit
• How-many-lengths fitting jig — Model division by a fractional unit
• Decimal-clearance spacer cards — Calculate differences at appropriate precision
• Precision and rounding inspection card — Distinguish exact arithmetic from measured precision
• Paper-ramp trial recording board — Compare distributions using repeated low-height trials
• Mean-and-median measurement display — Explain sensitivity to an outlier
• Sample-versus-population supply audit — Describe sampling limitations without false certainty
• Probability spinner design — Relate equal-area sectors to a probability model
• Two-event outcome planner — Enumerate outcomes and distinguish independence
• Design a portable paper exhibit — Integrate scale, budget, rational quantities and data
• Balance-equation supply cards — Preserve equality with reversible operations and original-inventory checks.
• Two-step unknown-length model — Distinguish fixed zones from repeated panels; solve and check feasible dimensions.
• Budget-inequality order selector — Enumerate permitted whole orders, strict limits and competing objectives.
• Expression-versus-equation design sheet — Build a reusable rule, exact-target question and budget decision; includes C5 cumulative review.
• Temperature-change workshop log — Distinguish signed readings, changes and total movement; limit conclusions to recorded times.
• Coordinate-layout pegboard drawing — Specify a four-quadrant paper map, inverse moves and route versus diagonal distance.
• Prism-net storage sleeve — Plan open versus closed faces, overlap material and an edges-parallel sheet fit.
• Cylinder label design — Unroll circumference into a label and round a minimum cut width upward.
• Triangle-brace paper model — Compare triangles by perpendicular height, including outside altitudes; paper area only, not strength.
• Scale-area-volume comparison kit — Distinguish uniform length, area and volume factors and test competing constraints.
• Capacity versus fit packaging test — Enumerate orientations and per-side clearances; complete the C4 cumulative independent check.
• Best-buy project purchasing case — Choose a feasible total-cost order; includes the C3 cumulative check.
• Reserve-material planning board — Distinguish added allowance from final reserve and choose whole packs.
• Markup versus margin shop cards — Compare profit against cost versus selling price.
• Tax-and-total budget sheet — Name the tax base, declare rounding and make a complete budget decision.
• Discount comparison price tags — Compare final prices, track changing bases and reverse a discount.
• Percent-grid stock gauge — Name the reference whole and make checked percent-reserve decisions.
• Speed-and-distance model track — Check units, moving time and elapsed time in paper schedules.
• Ratio repair design challenge — Repair proportional orders under fixed constraints, plus the C2 cumulative check.
• Unit-price purchasing board — Compare rates and find a feasible least-cost whole-pack purchase using fictional prices.
• Equivalent-ratio recipe card stand — Scale divisible lengths, distinguish whole finished counts and plan stock by type.
• Two-color ratio design tiles — Design a reproducible mosaic, scale ratios and justify whole-cell stock decisions.
• Fold a catch-all tray — Distinguish length, area and ideal rectangular volume.
• Equal-space compartment box — Account for material thickness when dividing usable space.
• Scale garden-bed planning model — Scale lengths consistently and compare model and real area.

Algebra & planning

• Tolerance-interval inspection gauge — Use absolute-value inequalities and interval intersections to make a consistent inspection decision.
• Linear-formula rearrangement cards — Rearrange linear formulas with units and domain restrictions, then verify by substitution.
• System-of-equations supply order — Use substitution or elimination to reconstruct a two-item order and test uniqueness and feasibility.
• Two-variable feasible-region board — Graph intersecting linear inequalities and optimize an objective over feasible integer choices.
• Precision-measurement distribution board — Compare center and variability of repeated measurements; distinguish consistency from accuracy and an observed distribution from a population claim.
• Sampling-method comparison audit — Compare convenience, simple-random and stratified sampling; separate selection bias from random sampling variability.
• Two-way-table decision display — Calculate joint, marginal and conditional frequencies, and distinguish an observed association from a causal explanation.
• Expected-value quality-control model — Use expected monetary cost and a break-even probability to compare inspection policies, while distinguishing expectation from individual outcomes.
• Simulation-based risk comparison — Construct a reproducible random-digit simulation, compare mean cost and large-loss probability, and separate Monte Carlo error from model error.
• Independent design-and-defend portfolio — Integrate a constrained design, data collection plan, model validation and uncertainty analysis into a defensible recommendation.
• Financial-assumption sensitivity case — Vary one assumption, qualify decisions and complete the D5 independent cumulative review.
• Logarithm threshold calculator — Solve exponential equalities and verify strict or weak whole-period thresholds.
• Compound-growth savings simulator — Compare credit bases, compounding frequency and deposit timing in a hypothetical ledger.
• Depreciation model comparison — Distinguish loss from remaining factors, check domains and critique hypothetical value models.
• Exponential-versus-linear plan board — Compare common-axis models and explain when a recommendation changes.
• Repeated-growth inventory model — Build recurrence and exponential rules with a discrete forecast and threshold check.
• Transformation-based tile design — Write reproducible coordinate recipes, test transformation order and complete the D4 cumulative review.
• Circle-sector sign layout — Distinguish arc trim, full boundary and sector area; use radians with stated units.
• Trigonometric height model — Model rise plus offset and test height limits under stated angle uncertainty.
• Right-triangle angle finder — Choose sine, cosine or tangent from labeled sides and recover acute angles.
• Similarity scale-transfer template — Preserve corresponding lengths and distinguish area from length scaling.
• Pythagorean rectangle-diagonal jig — Derive the right-triangle model, check diagonals and distinguish rounding from feasible length.
• Constrained packaging design capstone — Check fit, clearance and capacity before ranking designs; includes the D3 cumulative check.
• Volume-function sample explorer — Build a cubic paper-tray model and distinguish the best sample from a continuous optimum.
• Factor-and-zero window design — Separate algebraic roots from feasible dimensions and target-area solutions.
• Fixed-border display-area optimizer — Derive a quadratic, prove its maximum and apply domain restrictions.
• Paper-arch coordinate template — Derive vertex-form profiles, translate coordinates and check modeled clearance.
• Data-to-model review board — Compare residuals, judge prediction limits and complete a cumulative functions check.
• Inverse calibration scale — Reverse constructed readings, check domains and restrict nonlinear inverses.
• Function-machine sorting board — Distinguish functions from conflicting definitions and incomplete evidence; restrict inverses.
• Measured-rate paper conveyor model — Interpret signed rates, piecewise motion and contextual domains.
• Piecewise delivery-cost calculator — Compare price rules, boundary jumps and domain-checked inverse solutions.
• Design a desktop layout — Use a variable to solve an equal-gap constraint.
• Compare two packaging trays — Compare designs with a model, calculations and constraints.
• Supply-plan comparison board — Build tables and graphs, compare linear functions and check whole-number budget limits.
• Workshop layout and materials budget — Combine unit conversion, scale, quantities and budget assumptions.

Projects use paper, cardboard and household materials. The garden, desktop and workshop projects are planning models—not construction plans for load-bearing furniture.

New checked additions

The 144-project pathway is now available: 36 projects in each of four readiness bands. The final eleven additions complete rational-number operations and data/chance design, with original visuals, worked answers, independent checks and later transfer. All current AND all future parent-library additions remain included with the one-time $39 purchase, including existing eligible buyers. No subscription or extra charge. Checked digital pilots; no physical or family trial.

Forty-four more checked projects: Complete the 36-project number-sense, operations/measurement and algebra/modeling bands. Each new unit includes entry bridges, cumulative checks and later review. All four readiness bands now contain 36 delivered projects each. All current and all future parent-library additions are included with the one-time $39 purchase, including existing eligible buyers. Digital pilots; no physical or family trial.

Four equation and decision additions: Finish the C5 sequence with equality cards, two-step length models, budget sets and a three-form design brief with cumulative review. Included for existing eligible buyers. Digital pilots; no physical or family trial.

Two signed-number additions: A fictional temperature-change log and four-quadrant paper layout begin C5 with inverse reasoning and explicit model limits. Included for existing eligible buyers. Digital pilots; no physical or family trial.

Five geometry additions: Net sleeves, cylinder labels, triangle area, uniform scaling and packaging fit finish the six-project C4 unit with an independent cumulative check and reteaching routes. Included for existing eligible buyers. Digital pilots; no physical or family trial.

Five early-readiness additions: Pattern border, growing mosaic, pair parking, two-by-five rack and instruction-card set complete the six-project A3 unit with independent checks, worked keys and later transfer. Included for existing eligible buyers; digital pilots, not physical or family trials.

Three more checked additions: Compound-growth simulator, logarithm threshold calculator and assumption-sensitivity case complete the six-project D5 unit, including an independent cumulative check and worked reteaching route. Included for existing eligible buyers; digital pilots, not physical or family trials.

Three exponential-model additions: Repeated-growth inventory, exponential-versus-linear comparison and hypothetical depreciation introduce D5 with worked instruction, independent decisions and later transfer. Included for existing eligible buyers; digital pilots, not physical or family trials.

Two geometry additions: Circle-sector sign layout and Transformation-based tile design finish the six-project D4 unit, including an independent cumulative check and worked reteaching route. Included for existing eligible buyers; digital pilots, not physical or family trials.

Three checked geometry and trigonometry additions: Similarity scale-transfer template, Right-triangle angle finder and Trigonometric height model. Original paper models include worked reasoning, independent problems and delayed transfer. Included for existing eligible buyers; digital pilots, not physical trials or engineering approvals.

Four checked fraction additions: Equivalent-fraction folding screen, Mixed-number ribbon plan, Fraction-join label border and Fraction-measure transfer kit. B4 now has six delivered projects, including a cumulative independent check, worked key, targeted reteaching and later transfer. Included for existing eligible buyers; digital pilots, not physical or family trials.

Two checked additions: Fraction-strip comparison wallet and Pythagorean rectangle-diagonal jig. Includes worked teaching, independent decisions, original diagrams and delayed transfer. Included for existing eligible buyers; digital pilots, not physical or family trials.

Three checked percent-decision additions: Markup versus margin shop cards, Reserve-material planning board and Best-buy project purchasing case. C3 now has six delivered projects with an independent cumulative check, worked key, reteaching and later transfer. Included for existing eligible buyers; digital pilots, not physical or family trials.

Four checked additions: Repair-shop take-away envelopes, Missing-piece cover board, Build-to-ten packing challenge and Tax-and-total budget sheet. A2 now has six delivered projects with an independent cumulative check, worked key, reteaching and later transfer. Included for existing eligible buyers; digital pilots, not physical or family trials.

New addition and discount projects: Supply delivery addition track and Discount comparison price tags. Complete checked packs with original printables, independent tasks, worked answers and later transfer. Included for existing eligible buyers; digital pilots, not physical or family trials.

New number-sense and percent projects: Two-pocket parts mat and Percent-grid stock gauge. Original printable visuals, independent tasks, worked answers and later transfer; included for existing eligible buyers. Digital paper-model pilots, not physically/family tested.

Three more complete projects: Two-step order packing board, Fair-share project-kit capstone and Constrained packaging design capstone. B3 and D3 now each have six delivered projects with cumulative independent checks, worked keys, reteaching and later review. Included for existing eligible buyers; digital paper-model pilots, not physically/family tested.

Two new complete projects: Fact-family window wheel and Volume-function sample explorer. Included for existing eligible buyers with all future library additions; original digital paper-model pilots, not physically/family tested.

Remainder decision cards and Factor-and-zero window design add two complete 15-page projects with context decisions, original diagrams, full worked keys and delayed transfer. Included for existing eligible buyers; digitally checked paper models, no physical or family trials claimed.

Four further complete projects: Equal-share supply pouches, Pack-size dispatch station, Fixed-border display-area optimizer and Paper-arch coordinate template. Two distinct division meanings and substantive quadratic modeling, with independent tasks, checked worked answers and later transfer. Included for existing eligible buyers; paper-model pilots, not physical or family trials.

Four new complete projects: Equal-stock drawer labels, Count-and-check tool silhouette mat, Speed-and-distance model track and Ratio repair design challenge. A1 and C2 now each have six delivered projects with cumulative check, worked key, reteaching and later review. Included for existing eligible buyers; original paper-model pilots, not physically/family tested.

Quantity match delivery cards and Unit-price purchasing board add checked 15-page projects for quantity communication and proportional purchasing decisions. Included for existing eligible buyers; all examples are original paper activities, not physical or family trial results.

Five-pocket sorting wallet builds one-to-one matching before the ten-frame board. Equivalent-ratio recipe card stand extends ratio tiles into fractional-length scaling. Both complete 15-page packs include fresh independent tasks, worked answers and later transfer.

Multiplication choice game and Data-to-model review board complete the six-project equal-groups and functions units, with fresh cumulative checks and adult keys included in each 17-page capstone. These are checked digital pilots, not validated learning outcomes.

Scale-up supply kit orders and Inverse calibration scale: two complete 15-page additions, included for existing eligible buyers. Paper models with independent tasks, worked keys and later transfer; no physical or family trial claimed.

Skip-count hanging label strip: build packing checkpoints, distinguish starting stock from added labels, and choose complete batches.

Measured-rate paper conveyor model: connect signed rates, graphs and equations; compare piecewise motion, domains and average speed. Constructed data, not measured trial results.

Also added: Break-apart mosaic board develops distributive strategies and complete array partitions; Piecewise delivery-cost calculator develops boundary policies, price jumps and domain-checked comparisons. Rectangle-factor card rack and Function-machine sorting board extend those connected units. All six complete 15-page packs are included for current and existing eligible buyers. Digital pilots; physical/family trials remain unverified.

A CLEAR PLACE TO BEGIN

Your first four projects

Choose a starting skill, not a grade. These are suggested routes through available packs—not a test or a requirement to finish every project. Use the pack’s readiness check, slow down or revisit as needed.

LOOK INSIDE BEFORE YOU BUY

See the instructions you’ll actually use

These are real pages from the included PDFs—not mockups. Tap a page to read it full size. Illustrated plans show the project; workshop photographs elsewhere show our community, not completed home builds.

Your first three sessions

Choose one project at a comfortable skill level. Session 1: gather and explore. Session 2: make and explain with the parent prompts. Session 3: try a new example and decide what to revisit. Repeat the routine with the next project—there is no race through the library.

A place to begin and return: My Downloads includes a short readiness check, a four-week suggested plan, materials preparation, today’s project PDF and saved parent observations. Take your time; browse and download any project whenever you prefer.

$39 once: 144 projects × 3 connected sessions, plus the handbook, learner sheets and worked answers. Download individually or as one ZIP. Supplies are separate.

Try the full free organizer project

Ready for a longer build with a box and cardboard? The complete organizer guide remains free. If you’re unsure where to begin, choose a short starter first.

The home collection uses paper, cardboard and planning models—not load-bearing furniture builds. Materials and adult supervision are supplied by you.

About project testing

These are pilot materials. Math and digital delivery have been checked; physical builds, family usability and learning outcomes have not been validated. No family testimonials are claimed.

Use the family trial checklist