Glucose  molecules were illustrated for small children using yellow beads.
By connecting two or more of these beads they made models of maltose and of starch. THESE MODELS ARE  STILL CORRECT.
Here you will learn MORE about sugar molecules:
In the next photo you can see the models of two glucose molecules made of black, white and red beads.

Glucose consists of ring shaped molecules with 6 C atoms, 12 H atoms and 6 O atoms.
Photo: Models of 2 glucose ring molecules.

Maltose is synthesized by fusing two glucose molecules (Photo: Glucose 1 +2) resulting in a double molecule.