How to Build with MEGA BLOKS First Builders Big Building Bag

By Shop Mattel Australia | Published: 2026-10-29

Category: How-to Guides

Unlock creative play with the MEGA BLOKS First Builders Big Building Bag. Follow these simple steps and tips to build towers, animals, and more with your toddler.

Quick Answer

Start with simple towers and then move to animals or vehicles using the 80 big blocks in the MEGA BLOKS First Builders Big Building Bag. Focus on stacking stability and color matching to build your toddler's confidence.

Why Start with the Big Building Bag?

The 80-piece set is designed for little hands—blocks are large enough to grip easily but light enough to stack without frustration. Because the blocks are compatible with other MEGA BLOKS sets, you can expand creations later without buying a whole new system.

Common Mistakes to Avoid

Don't force a specific design too early. Toddlers learn best by free exploration, so let them knock down towers before rebuilding. Also, avoid mixing too many colors at once—start with two or three to help your child focus on shape and balance.

Step-by-Step Building Guide

Sort Blocks by Color: Separate the 80 blocks into piles by color (red, blue, yellow, green, etc.). This helps your child see patterns and choose blocks for a specific design. Common mistake: skipping the sort leads to chaotic stacking that falls over easily. Sorting teaches color recognition and makes building faster.
Build a Stable Base: Place four blocks in a square on a flat surface, interlocking them firmly. Press down until you hear or feel a click. Checkpoint: if the base wobbles, add a fifth block in the center to reinforce it. A solid base prevents toppling and builds confidence.
Stack in a Staggered Pattern: Place the next layer of blocks so each block sits over the gap between two lower blocks (like brickwork). This distributes weight evenly. Common mistake: stacking directly on top creates weak columns that tip. Staggered stacking creates stronger, taller towers.
Add a Simple Roof or Top: Cap the tower with a flat row of blocks or a single large block. For a roof shape, use two blocks angled inward (if available). Checkpoint: ensure the top block is centered so it doesn't slide off. A finished top makes the creation feel complete.
Create an Animal Shape: Use four blocks for a body (two wide, two tall), add one block for a head, and two smaller blocks for ears or legs. Example: a dog shape uses a yellow body, brown head, and four short legs. Common mistake: making legs too tall causes the animal to tip forward. Animal shapes encourage imaginative storytelling.
Build a Simple Car: Lay two blocks side by side for the base, stack one block on top for the cabin, and add a single block in front for the hood. Checkpoint: the car should roll if pushed gently—if not, the base blocks may be misaligned. Cars introduce cause-and-effect play (push and roll).

Product Facts

First Builders Big Building Bag: This award-winning set of 80 big and vibrant building blocks is the perfect toy for your toddler's little hands and big imagination. The large size reduces choking risk and makes it easier for small fingers to connect and pull apart, which builds fine motor skills.
First Builders Big Building Bag