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Knowledge preservation / Food preservation card

Knowledge preservation
Knowledge preservation

There are often some fresh-keeping cards in the bread. Children will throw away this thing after unpacking. It's a bit wasteful to reuse this thing. On the basis of this fresh-keeping card, it can be made into bookmark card with some small knowledge. According to the small knowledge, it can be classified. Children can also exchange some cards, which not only enrich knowledge, but also make friends, and effectively use resources.

University

Shenyang ligong university

Shenyang ligong university
Shenyang, China

Qi Zhang,
Shenyang ligong university