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The Cubelets Clever Constructors Pack is Modular Robotics' best-selling classroom configuration of Cubelets — magnetic robot blocks that snap together to build working robots with no screen, no wiring, and no syntax to memorize. Every Cubelet belongs to one of three families: SENSE blocks (like Distance and Brightness) that read the environment, THINK blocks (like Inverse, Threshold, and Knob) that process that information, and ACT blocks (like Drive, Rotate, and Flashlight) that turn it into motion or light. Because the magnetic faces only connect one way, even four-year-olds can assemble a robot that drives, steers, and reacts in seconds.
This pack contains 78 Cubelets across 11 types, enough to support six working groups of three to five students at once — which is why it is the configuration most educators choose for a full class or a small makerspace. It ships with 12 brick adapters (compatible with LEGO and similar bricks), five Micro-USB charging cables, a five-port multi-battery charger, and a padded storage container for transport between rooms. Battery Cubelets run up to about six hours per charge. Every set also unlocks Modular Robotics' free standards-aligned lesson plans, printable activity cards, and online professional development.
As America's largest commercial robotics integrator, RobotLAB resells the Clever Constructors Pack to schools, libraries, and makerspaces and pairs it with deployment guidance, educator onboarding, and ongoing support. We help districts choose the right Cubelets configuration for their student count and budget, add grade-banded lesson bundles where needed, and stand behind the purchase after the box is opened.
| Brand | Modular Robotics (Cubelets) |
| Product | Cubelets Clever Constructors Pack |
| Total Cubelets | 78 robot blocks |
| Cubelet types | 11 (Brightness, Distance, Knob, Battery, Inverse, Passive, Threshold, Bar Graph, Flashlight, Drive, Rotate) |
| Block breakdown | 6 Brightness, 12 Distance, 6 Knob, 6 Battery, 6 Inverse, 6 Passive, 6 Threshold, 6 Bar Graph, 6 Flashlight, 12 Drive, 6 Rotate |
| Brick adapters | 12 (LEGO-compatible) |
| Charging | 1 five-port charger + 5 Micro-USB cables |
| Storage | 1 padded storage container |
| Working groups supported | 6 groups (3-5 students each) |
| Recommended ages | 4+ |
| Battery life | Up to ~6 hours per charge |
| Programming | Screen-free; magnetic snap-together (no coding required) |
| Curriculum | Free standards-aligned lesson plans, activity cards, online PD; optional grade-banded bundles ($199 each) |
| Purchase Price | $2,890 |
The 78-block count supports six groups of three to five students, making this the natural fit for a full elementary or middle-school class. Students build robots that sense, think, and act, then iterate on behavior by swapping blocks — an introduction to computational thinking and robotics that requires no screens, logins, or coding syntax. Free standards-aligned lesson plans and activity cards drop straight into existing STEM or CS curriculum.
Cubelets are rated for ages 4+ and connect with a single magnetic orientation, so learners who struggle with fine-motor precision, reading, or abstract code can still build a working robot and see immediate cause and effect. The screen-free, tactile format suits early-learning rooms and special-education programs where hands-on, low-frustration tools keep students engaged.
Six independent groups can run different builds simultaneously, and the included padded storage container makes the pack easy to move between branches, classrooms, or pop-up events. For libraries and community makerspaces running drop-in robotics sessions for mixed-age groups, the Clever Constructors Pack offers enough variety and quantity to keep a room busy without per-student devices.
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The pack includes 78 Cubelets across 11 types (6 Brightness, 12 Distance, 6 Knob, 6 Battery, 6 Inverse, 6 Passive, 6 Threshold, 6 Bar Graph, 6 Flashlight, 12 Drive, and 6 Rotate), plus 12 LEGO-compatible brick adapters, five Micro-USB charging cables, a five-port charger, and a padded storage container. It supports six working groups. For a full bill of materials or a quote, call 1-87-RobotLAB.
It is sized for six working groups of three to five students each, so a full class can build simultaneously. That's why Clever Constructors is the most popular configuration for classrooms and small makerspaces. If you need to cover more groups, ask us about the Intrepid Inventors Mega Pack at 1-87-RobotLAB.
No. Cubelets are screen-free and require no coding syntax — the magnetic faces snap together one way, and the robot's behavior comes from how SENSE, THINK, and ACT blocks are combined. They are rated for ages 4+. If you later want programmable challenges, the Creative Constructors Plus Pack adds Bluetooth Hats; call 1-87-RobotLAB to compare.
Both include 78 Cubelets for six groups, but the Creative Constructors Plus Pack adds six Bluetooth Hats (for programming, Personality Swaps, and remote-control races) plus three storage tubs, at $2,990 versus $2,890 for this pack. If Bluetooth programming matters for your program, the Plus pack is worth the small upcharge — call 1-87-RobotLAB to decide.
Yes. Every Cubelets pack unlocks Modular Robotics' free standards-aligned lesson plans, printable activity cards, and online professional development. Grade-banded lesson bundles (PreK-K, Grades 1-3, 4-6, and 7-12) are available separately at $199 each. RobotLAB can bundle the right curriculum and educator onboarding — call 1-87-RobotLAB.
Yes. As a reseller and integrator, RobotLAB supports purchase, lease, and RaaS arrangements, and can quote multi-pack or district-wide orders. Call 1-87-RobotLAB to discuss volume pricing and deployment for your school or library.
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