About what percentage of U.S. students are estimated to have attention deficit disorder (ADD)? 

Briefly explain why it is important to select the appropriate level of reading materials for your students. Your answer should be a minimum of 2 sentences.

22) Which one of the following statements is TRUE regarding the structure of the atom? A) The nucleus is composed of equal numbers of positively charged particles and negatively charged particles. B) All electrons are located at the same distance from the nucleus. C) In small elements, such as carbon, electrons have a positive charge; in larger elements, such as barium, electrons have a negative charge. D) Most of the mass of an atom is due to its protons and neutrons.

What is the value of Area B in Scenario 2?

What is the the value of Area A in Scenario 2?

21) A mad scientist has ripped apart an atom and collected all the subatomic particles located in the nucleus of the atom. Which one of the following has he collected? A) electrons B) protons C) protons and neutrons D) electrons and protons

7) Which one of the following is a kingdom? A) Eukarya B) Primates C) Archaea D) Animalia

Which of the following would be the most effective way to assess students who are reading significantly below grade level?

What is the value of Area A in Scenario 1?

39) There are different types of microscopes that can be used to provide information about cells. Which type of microscope is used for the observation of living cells? A) light microscope B) scanning electron microscope C) transmission electron microscope