Symmetry is a concept in mathematics that refers to the balanced and harmonious arrangement of elements or shapes. In geometry, symmetry is often understood as a transformation that leaves an object unchanged. Understanding symmetry is important in various fields, including art, design, and architecture.
Number and Operations: Students' work in dividing fractions shows them that they can express the result of dividing two whole numbers as a fraction (viewed as parts of a whole). Students then extend their work in grade 5 with division of whole numbers to give mixed number and decimal solutions to division problems with whole numbers. They recognize that ratio tables not only derive from rows in the multiplication table but also connect with equivalent fractions. Students distinguish multiplicative comparisons from additive comparisons.