Teachers

idnamesubject
1John DoeMath
2Jane SmithEnglish
3Mike BrownScience
4Emily DavisHistory
5Robert JohnsonArt

Supplies

idsupplyNamequantity
1Stickers100
2Notebooks200
3Pens300
4Erasers400
5Markers500

Teachers_Supplies

teacherIDsupplyID
(→ Teachers.id)(→ Supplies.id)
11
21
31
41
51