
Computer Science & AI 3-5 Replacement Pack
Set 45546 is a replacement parts pack from the LEGO Education range, aimed at classroom computer science and AI activities for grades 3 to 5. With 224 pieces, four minifigures and 54 unique parts, it's designed to top up existing classroom sets.
- Set number
- 45546
- Year
- 2026
- Pieces
- 224
- Minifigures
- 4
- Different parts
- 54
Parts list 54
-
Technic Pin without Friction Ridges Lengthwise
× 12
-
Plate Round 2 × 2 with Rounded Bottom [Boat Stud]
× 8
-
Brick Sloped 45° 2 × 1 with Bottom Pin
× 8
-
Bracket 1 × 2 - 2 × 2
× 8
-
Plate Special 2 × 2 × 2/3 with Axle Hole and Grill on Sides (Haybale)
× 8
-
Brick Round 2 × 2 with Axle Hole
× 6
-
Technic Axle 3
× 6
-
Tile Round 2 × 2 with Black Circle, White Circles / Eye print
× 4
-
Brick 2 × 4
× 4
-
Brick 2 × 4
× 4
-
Brick 2 × 2
× 4
-
Brick 2 × 2
× 4
-
Brick 2 × 2
× 4
-
Brick 2 × 2
× 4
-
Plate 2 × 4
× 4
-
Brick Sloped 33° 3 × 2
× 4
-
Technic Brick 1 × 2 [1 Pin Hole]
× 4
-
Technic Brick 1 × 4 [3 Pin Holes]
× 4
-
Technic Brick 1 × 8 [7 Pin Holes]
× 4
-
Brick Sloped 33° 3 × 1
× 4
-
Wheel Smooth 24 × 14mm with Pin Hole
× 4
-
Brick Round 2 × 2 D. Tube with 45° Elbow and Axle Holes (Crossholes) at Each End [LONG]
× 4
-
Brick Special 2 × 2 with Pin and Axle Hole
× 4
-
Pulley, 2-Stage
× 4
-
Plate Special 1 × 4 × 2/3 with 1 × 2 Bottom Cutout
× 4
-
Plate Special 1 × 2 with Three Teeth [Tri-Tooth]
× 4
-
Tile Special Round 2 × 2 with Hole
× 4
-
Technic Brick 1 × 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin
× 4
-
Brick Special 2 × 4 with 3 Axle Holes
× 4
-
Brick Special 1 × 2 with Pin - Bottom Stud Holder
× 4
-
Technic Axle Connector Smooth [with x Hole + Orientation]
× 4
-
Plate Round 4 × 4 with Pin Hole
× 4
-
Wave / Flame Rounded with Base Rim
× 4
-
Tile Round 2 × 4
× 4
-
Plate Round Corner 3 × 3 with 2 × 2 Round Cutout
× 4
-
Plate Round Corner 3 × 3 with 2 × 2 Round Cutout
× 4
-
Bracket 1 × 2 - 2 × 2 Inverted
× 4
-
Plate Special 2 × 2 with Rubber Foot
× 4
-
Brick 2 × 6
× 2
-
Brick 2 × 4
× 2
-
Brick 2 × 4
× 2
-
Brick 2 × 4
× 2
-
Brick 2 × 4
× 2
-
Brick 2 × 4
× 2
-
Plate 2 × 8
× 2
-
Technic Axle 4
× 2
-
Tile 1 × 6 with Groove
× 2
-
Technic Brick 5 × 6 Right Angle Double
× 2
-
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]
× 2
-
Brick Special 2 × 4, with 2 × 2 Brick with Top Pin and 1 × 2 Side Plates
× 2
-
Wedge Plate 4 × 6 Cut Corners
× 2
-
Technic Axle 5
× 2
-
Technic Rubber Belt Medium [24mm ID] [Round Cross Section]
× 2
-
Technic Brick 2 × 4 with 4 Pin Holes, 2 Pins
× 2
No part matches this colour selection.
Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.
Minifigures 4
Description
A set built for the classroom
Unlike a typical build set, this pack exists to replace lost or damaged parts from a larger Education set used to teach computer science and AI basics, making it aimed primarily at schools rather than private collectors who want to reorder specific components instead of buying a whole new set. Checking the full parts list on this page makes it easy to see how the different colours and shapes come together in the finished model. The finished model can then be placed flexibly on a shelf or desk, regardless of whether other sets from the same range are already on display.
Colours and parts
White, Black, Dark Turquoise and Dark Purple make up the palette, chosen for easy identification in a classroom setting. Of the 224 pieces, 54 are unique parts and colours; the full list is on the parts list on this page. The limited colour range also makes it easier to sort parts back into place after a lesson. For collectors who already own similar sets, the combination of theme and piece count is a fairly natural reason to add this one to the shelf. Anyone still deciding can check the full list of colours and shapes used on this page for a closer look before buying.
Four minifigures
Four minifigures are included, useful for simple classroom scenarios, such as illustrating programming sequences with tangible figures. In a teaching context, they work more as a practical tool than a collectible, reused across different exercises rather than displayed. The build itself offers enough variety to keep even an experienced builder engaged for a short session, without feeling overly complicated. Checking the full parts list on this page makes it easy to see how the different colours and shapes come together in the finished model. The build itself offers enough variety to keep even an experienced builder engaged for a short session, without feeling overly complicated.
Practical rather than collectible
The set favours function over aesthetics and mainly serves to keep existing Education sets complete. It's still of interest to collectors for its unusual part combination, one that doesn't appear in this form in any regular retail set. Compared with other sets of similar size, it's clear how much detail has been packed into a fairly limited piece count. For collectors who already own similar sets, the combination of theme and piece count is a fairly natural reason to add this one to the shelf.
FAQ
- Who is this set intended for?
- It's mainly aimed at schools, to top up existing LEGO Education computer science and AI sets.
- How many pieces does 45546 have?
- The set has 224 pieces across 54 unique parts and colours.
- How many minifigures are included?
- The set includes four minifigures.



