For example
A mango is a solid, but its photo is flat.
In Grade 2
Children sort real objects into flat and solid piles before naming cubes, cones and cylinders.
Watch out for
Children often think solid means heavy or hard. A solid shape is simply one that takes up space rather than lying flat.
Say it at home
Ask whether a thing is flat like paper or solid like a tin, and why.
Try it together
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