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| boxes and number blocks used for stacking. | 
Materials for STACKING and engaging young children.
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| flat stack of rectangle blocks. | 
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| different size and shaped blocks, stacked in a tower design. | 
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| group work to create this balanced tower of alphabet boxes. | 
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| snap blocks stacked high, with extra at base for balance. | 
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| classic materials for young child to restack, restack, restack. | 
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| wood blocks stacked for this dinosaur look-out tower! | 
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| tree parts to stack and stack with larger base at bottom. | 
Different ways to think about size, color, balance.
Different ways to think.
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| complex stacking, balancing, stacking. | 
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| varied materials for stacking and designing - visual interest and whimsy. | 
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| magnetic stacks, piece by piece, part by part, higher and higher. | 
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| cones, cube blocks, and tubes are stacked as two boys continue their play. | 
Different ways to think about working alone, with a friend or with a group.
Different ways to think about quantity, geometry, symmetry. 
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| cube blocks stacked in a complex tower on a mirrored base. | 
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| kapla blocks stacked in four tall stacks, with bears atop. | 
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| magnets stacked to stay together in one line. | 
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| patterns, colors, shapes and sizes all in one game. | 
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| this kind of stacking is no accident - wow. | 
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| hmmm, stacking curved items within themselves? impressive. | 
 stacks, stacks, stacks.