Optics: : [op-tiks] - noun. A branch of physics that studies electromagnetic radiation (for example, light and infrared radiation), its interactions with matter, and instruments used to gather information due to these interactions.Optics includes the study of sight. branch of physics that studies electromagnetic radiation (for example, light and infrared radiation), its interactions with matter, and instruments used to gather information due to these interactions.
By 1924, the National Flag Conference, under the leadership of the American Legion and the Daughters of the American Revolution, changed the Pledge's words, 'my Flag,' to 'the Flag of the United States of America.'
Pledge of Rules. After creating classroom rules, help students create a classroom pledge that reminds them of the rules. Practice the pledge and let the children write out the pledge and keep it on their desks. The pledge can be said every morning and will keep the rules fresh in the children's minds.