Module 5 A lesson in a lab

ask the students to read the text for some time and try to retell the experiment with the help of the table.
if there is time, check if some can.
iv. homework:
 retell the experiment and report a similar experiment.

module 5 a lesson in a lab
period 3
teaching aims:
  enabling the students to
   1. know how to read the decimals.
   2. know sth about the science teaching in a senior high school.
teaching steps：
i. ask some students to read the following numbers:
  623,100,486
  563,256,369
  12,000,865,065
  3/7
  2/9
  3/10
  26%
  48%
  0.8
  3.6
  19.36
  22.58
ii. deal with everyday english on page 48.
  answers：
  1a    2b    3a    4b    5a
iii. turn to page 49. cultural corner.
  look at this photo. this boy is mark kendon. mark kendon is a canadian student at senior high school. the passage is about his description of science teaching in his school. now read the passage quickly and try to find the answers to the following question:
  why has mark become more interested in science?
  --because he has moved to a new school with good facilities and teachers.
  read the passage again and try to get as much information as possible. do the following questions.
  was mark interested in science at first?
 --no.
  what happened to his feelings about science?
 --his feelings about science have now changed.
  how did he get interested in science?
 ---the science teachers at the new school are excellent, the science facilities are very good, with labs that have all the latest equipment. we are taken to interesting public science lectures about four times a term.
iv. discussion
 1. how do our teachers teach science subjects?
 2. is it a good idea to ask some scientists to give us lectures?
v. homework:
 revise the whole module and get the exercises in the workbook ready.