Zinc dust is a pure metal powder, which is grey in colour and is produced by condensation of purified zinc vapors. The particle shape is spherical. Zinc dust is suitable for use in many binder formulations for the manufacture of zinc primers and shop primers, for example inorganic ethyl silicate and epoxy primers.
Description: Shared Reading is an interactive reading experience that occurs when students. join in or share the reading of a big book or other enlarged text while guided and supported by a. teacher or other experienced reader. Students observe an expert reading the text with fluency. and expression.
Background. A Seed Discussion is a two-part strategy used to teach students how to engage in discussions about assigned readings. In the first part, students read selected text and identify seeds or key concepts of a passage which may need additional explanation.In the second part, students work in small groups to present their seeds to one another.Each seed should be thoroughly discussed before moving on to the next.ntroduce students to the seed discussion strategy. Each student should be assigned to a group composed of varying skill levels and a role within the group. Seed Discussions usually include the following four roles played by students: 1  Leader: responsible for calling on each person to share his/her discussion seeds.